10 Qualities of a Good Marriage: What the Research Actually Says

10 Qualities of a Good Marriage: What the Research Actually Says

Everyone goes into marriage with hope. Most people go in without a roadmap.

We are taught what a wedding looks like. We are rarely taught what a marriage looks like, what it actually requires day to day, or how to tell the difference between a rough patch and a fundamental incompatibility. The result is that millions of couples find themselves years in, wondering whether what they have is normal, whether it is fixable, or whether they are simply doing it wrong.

The good news is that researchers have spent decades studying exactly this. What makes marriages last? What separates couples who stay happily together from those who divorce, or from those who stay together but are quietly miserable? The answers are more specific, more practical, and more hopeful than most people expect.

This article draws on some of the most significant research in relationship science, including the landmark work of Dr. John Gottman, whose “Love Lab” at the University of Washington studied thousands of couples over decades and produced findings that could predict divorce with 93.6% accuracy. It also draws on data from the 2025 Institute for Family Studies report on marital quality, the Australian Institute of Family Studies longitudinal research on lasting marriages, and a range of peer-reviewed sources in relationship psychology.

These are not vague platitudes. These are the ten qualities that research consistently identifies in good, lasting marriages. And every single one of them is something that can be chosen, practised, and built.

For wider context on healthy versus unhealthy relationship dynamics, explore The Confidence Magazine’s guides on Signs of a Toxic Friendship, Do Narcissists Love?, and Can a Narcissist Change?

1. Deep, Genuine Friendship

The most consistent finding across decades of marriage research is not romantic chemistry or sexual compatibility. It is friendship.

Dr. John Gottman, whose research involved over 40,000 couples across seven major studies, identified deep friendship as the single most important foundation of a lasting marriage. The couples who stayed together and were genuinely happy were, above everything else, people who liked each other. They knew each other’s inner worlds, what the other was worried about, what they were proud of, what their dreams were. They found each other interesting.

Psychology Today, summarising decades of relationship research, identifies deep friendship as the first and most important feature of happy modern marriages, describing it as “getting to know each other’s inner workings, feeling safe enough to be vulnerable, and supporting each other’s dreams” (Psychology Today, 2024).

The practical implication is significant. A good marriage is not just a romantic relationship. It is a friendship that has been chosen and consistently maintained. Couples who let the friendship erode while focusing only on roles and responsibilities typically find the relationship increasingly hollow, even when there is no obvious conflict.

2. Consistent, Honest Communication

A Cornell University study identified communication as the single most important trait of marriages that last (Marriage.com, 2023). This is not just the ability to talk about problems. It is the daily practice of staying genuinely known to each other.

Gottman’s research introduced the concept of “bids for connection,” the small, everyday moments in which one partner reaches toward the other. A comment about something they noticed, a question about how a meeting went, a touch on the arm in passing. His research found that couples who stayed married “turned toward” these bids around 86% of the time. Couples who divorced turned toward each other only about 33% of the time (Fortune, 2025).

The missed bids matter more than most people realise. According to the Gottman Institute, missing a bid can be more damaging than outright rejection, because at least rejection acknowledges the attempt (Westchase Law, 2024).

Good communication in marriage is not about having difficult conversations perfectly. It is about consistently showing up as someone who is paying attention.

3. Deep and Sustained Commitment

The 2025 Institute for Family Studies report, which surveyed 2,000 married men and women, identified commitment as the strongest predictor of both marital happiness and stability. Couples who described themselves as deeply committed to their spouse and to their marriage were both the happiest and the least likely to divorce (Institute for Family Studies, 2025).

Importantly, this commitment is not passive. It is not simply the absence of leaving. It is the daily, active choice to prioritise the relationship, to honour the vows in behaviour not just intention, and to show up for a partner even when it is inconvenient.

Research from Marriage.com describes this as commitment functioning like “the glue of marriage,” an unwavering foundation that builds stability and deepens trust over time. The couples who sustain it are those who understand that commitment is not a feeling. It is a practice.

4. The Ability to Repair After Conflict

Here is one of the most counterintuitive findings in marriage research: it is not the absence of conflict that predicts a good marriage. It is what happens after it.

Gottman’s research found that 69% of relationship conflicts are “perpetual,” meaning they never fully resolve. Successful couples are not those who solve these conflicts but those who manage them without contempt, and who repair effectively in their aftermath (Yung Sidekick, 2025).

A repair attempt is anything a partner does to de-escalate tension during or after a disagreement. A gentle touch, an acknowledgement, a moment of humour, a sincere apology. Gottman found that 84% of couples who scored high on destructive communication patterns but repaired effectively were in stable, happy marriages six years later (Covenant Community Church / Gottman research summary).

The quality of a marriage is not measured in the absence of bad moments. It is measured in the presence of genuine attempts to come back from them.

5. Mutual Respect and Admiration

Respect is listed in almost every piece of marriage research as a foundational requirement, but it is worth being precise about what it actually means in practice.

In Gottman’s framework, the opposite of respect is contempt, which he identified as the single most corrosive force in a marriage and the strongest individual predictor of divorce. Contempt is not simply disrespect. It is the communication that the other person is inferior, stupid, or beneath you. It shows up as eye rolls, sneering, dismissive humour at the other’s expense, and a consistent tone of superiority.

The antidote to contempt, and the active presence of respect, is what Gottman calls a “culture of appreciation and admiration.” This means regularly and genuinely noticing what you value about your partner. Not just thinking it. Saying it. Research shows that couples who maintain a ratio of roughly five positive interactions to every negative one have significantly more stable and satisfying marriages (Yung Sidekick, 2025).

The Australian Institute of Family Studies longitudinal research, which tracked long-married couples, found that respect, trust, and understanding were consistently identified by respondents as vital to marital satisfaction, with their reciprocity becoming the key factor in the later years of marriage (AIFS, 2002).

6. Trust, Safety, and Security

Trust is not a single thing. It is, as Gottman has described it, built in very small moments, through the consistent accumulation of reliable behaviour over time. It is built when a partner keeps their word in the small things as well as the large ones. When they show up. When they tell the truth even when it is uncomfortable. When their actions over time match their words.

The Australian Institute of Family Studies research found that trust remained the central pillar of happy, lasting marriages regardless of what else the couples had been through. Couples described trust as providing “a sense of safety and security” and identified it as “the basis for the development of both psychological and sexual intimacy and the anchor of their fidelity” (AIFS, 2002).

In the context of the other articles published on The Confidence Magazine exploring toxic relationships and narcissistic dynamics, the presence of genuine trust is perhaps the clearest marker of the difference between a healthy relationship and a damaging one. Where trust is consistently eroded, the relationship cannot be safe. Where safety is absent, intimacy is impossible.

7. Shared Meaning, Values, and Vision

One of the qualities least discussed in mainstream marriage advice, and most consistently supported by research, is the importance of shared meaning. Not just compatible lifestyles, but a genuine alignment in the deeper questions: what matters, what a good life looks like, what you are building together and why.

Gottman’s research identified the creation of “shared meaning” as a key component of what he calls the “Sound Relationship House,” the architectural model of a healthy marriage. This includes shared rituals, shared goals, shared values, and a sense that the relationship has a purpose beyond its daily functioning.

The University of Northern Iowa research on optimal characteristics for happy marriages identified staying “focused on the positive aspects of the marriage” and having a “solid friendship” as foundational, noting that couples who lack a shared sense of meaning and direction tend to find conflict harder to navigate and satisfaction harder to maintain (UNI ScholarWorks).

Shared meaning does not require identical views on everything. It requires that the important things, the values that shape daily decisions and long-term direction, are genuinely aligned rather than simply tolerated.

8. Emotional and Physical Intimacy

The Australian Institute of Family Studies research describes intimacy as a composite of “mutual understanding, acceptance, trust” and identifies both psychological and sexual intimacy as key markers of marital satisfaction across the lifespan of a marriage (AIFS, 2002).

Emotional intimacy is the willingness to be known. To share what you are afraid of, what you regret, what you hope for, without the expectation of judgement. In healthy marriages, this kind of vulnerability deepens over time as trust accumulates.

Physical intimacy is not simply about sex, though that is part of it. It includes the texture of physical closeness in daily life: proximity, touch, the small physical gestures that communicate care and connection. Gottman’s research on “turning toward” includes physical turning toward, the body language of availability and warmth. Couples who maintain this physical attunement tend to maintain emotional connection more easily, because the two are deeply interrelated.

9. Acceptance and Grace

No person is finished when they marry. People change, grow, struggle, and sometimes behave badly. A good marriage requires the capacity to accept a partner as they actually are, not as you hoped they would become, and to extend grace in the inevitable moments of failure.

Christina Eller, a licensed mental health counsellor and psychotherapist specialising in couples, describes good marriages as built on “a solid friendship where you’re nurturing each other and where you have high regard, fondness, and admiration for one another” (Fortune, 2025). That fondness has to survive contact with reality, with a partner’s weaknesses, with seasons of difficulty.

The research is clear that acceptance is not the same as tolerating harmful behaviour. There is an important distinction between accepting a partner’s imperfections with grace and accepting patterns that are genuinely damaging. The qualities listed in this article describe a mutual dynamic. Where one partner consistently withholds, undermines, or harms the other, acceptance alone is not the solution.

For more on recognising where a relationship has crossed from difficult into genuinely harmful, read Signs of a Toxic Friendship and Do Narcissists Love? on The Confidence Magazine.

10. Commitment to Growth, Together and Individually

The marriages that last are rarely the ones that stayed exactly the same. They are the ones in which both people kept growing, and in which the relationship itself was treated as something that needed ongoing attention and investment rather than something that ran automatically once established.

The 2025 IFS report on marital quality emphasised that all four of the factors it identified as strong predictors of marital happiness and stability are “attitudes and behaviours that spouses can actively choose and put into practice” (IFS, 2025). That framing matters. A good marriage is not something that happens to you. It is something you build, maintain, and choose to reinvest in across time.

Fortune’s 2025 analysis of the longest, healthiest marriages identified self-awareness and individual wellbeing as key components, noting that partners who maintain their own mental, emotional, and physical health are better equipped to give their marriage the energy it needs (Fortune, 2025). A marriage of two people actively growing is almost always more resilient than a marriage in which both parties have stopped.

This includes seeking support when the relationship needs it. Couples therapy, retreats, honest conversations with trusted people, and continued education about relationship health are not signs that a marriage is failing. They are signs that it is being tended.

What These Qualities Have in Common

Looking across these ten qualities, a pattern emerges. Every one of them is active. Every one of them is a practice, not a passive state.

Trust is built through consistent action. Communication requires daily attention. Repair takes willingness. Acceptance takes effort. Commitment is renewed, not just declared once. Even friendship, the most foundational quality, requires that both people continue choosing to know each other rather than coasting on the familiarity of the past.

The implication is empowering rather than exhausting: a good marriage is not something you either have or do not have by luck or chemistry. It is something that is built, deliberately, by two people who understand what they are building and keep showing up for it.

The research gives you the blueprint. The rest is choice.

Further Reading on The Confidence Magazine

This article is part of The Confidence Magazine’s ongoing series on relationships, self-worth, and empowerment. For related reading:

Do Narcissists Love? The Honest, Research-Backed Answer explores what narcissists actually experience in romantic relationships and how that differs from genuine love.

Signs of a Toxic Friendship covers the signs that a close relationship has become genuinely damaging, and what to do about it.

Can a Narcissist Change? is a science-backed guide for anyone recognising narcissistic patterns in themselves and wondering whether growth is possible.

Narcissist Quotes gathers 50 of the most widely shared and clinically grounded quotes about narcissism, with context on each.

Explore more in our Relationships and Empowerment sections.

References and Citations

1. Gottman, J. M. (1992). Predicting divorce. Cited in Gottman Institute FAQ. https://www.gottman.com/about/research/faq/

2. Institute for Family Studies. (2025). For Better: Four Proven Ways to a Strong and Stable Marriage. IFS/Wheatley Report using 2022 State of Our Unions Survey data. https://ifstudies.org/blog/four-proven-ingredients-of-a-lasting-happy-marriage

3. Australian Institute of Family Studies. (2002). Why Marriages Last. Research Paper No. 28. https://aifs.gov.au/all-research/research-reports/why-marriages-last

4. Psychology Today. (2024). Happily Ever After: 5 Important Features of Modern Marriages. https://www.psychologytoday.com/us/blog/spark/202403/happily-ever-after-5-important-features-of-modern-marriages

5. Fortune / McPhillips, K. (2025). The Longest, Healthiest Marriages Have These 6 Defining Traits. https://www.fortune.com/well/article/what-makes-marriage-successful-happy-advice-keys-best

6. Marriage.com. (2023). 5 Traits of a Long-Lasting Marriage. Based on Cornell University research. https://www.marriage.com/advice/relationship/5-traits-of-a-long-lasting-marriage/

7. University of Northern Iowa. Optimal Characteristics for Happy and Satisfying Marriages. UNI ScholarWorks. https://scholarworks.uni.edu/cgi/viewcontent.cgi?article=1254&context=grp

8. South Denver Therapy. (2025). The 4 Horsemen of Relationships That Predict Divorce. https://www.southdenvertherapy.com/blog/four-horsemen-relationships-gottman

9. Yung Sidekick. (2025). John Gottman’s Research: What Every Therapist Needs to Know About Relationship Science. https://yung-sidekick.com/blog/john-gottman-s-research-what-every-therapist-needs-to-know-about-relationship-science

10. Westchase Law. (2024). Study: Researchers Claim They Can Predict Divorce with 94% Accuracy Based on Communication Error. https://www.westchaselaw.com/2024/04/22/study-researchers-claim-they-can-predict-divorce-with-94-accuracy-based-on-communication-error/

The Confidence Magazine is the home of bold women, honest conversations, and unapologetic ambition. Explore our Relationships and Empowerment sections for more.

Please Note: This article is for informational and educational purposes only. It does not constitute professional relationship, psychological, or therapeutic advice. Every marriage is unique, and the research summarised here reflects broad patterns rather than individual circumstances. If you are experiencing significant difficulties in your relationship, we encourage you to seek support from a qualified couples therapist or counsellor. In the UK, you can find a specialist via the BACP therapist directory or through Relate, the UK’s leading relationship support charity.