What’s the Number One Cause of Divorce? It’s Not What Most People Think
What is the number one cause of divorce? Most people point to communication problems, but research shows that’s usually a symptom, not the root cause. Dr. John Gottman’s work found that contempt, not conflict, is the strongest predictor of divorce. Contempt shows up as disrespect, sarcasm, dismissiveness, and a loss of mutual regard, and it tends to build gradually over time until it becomes the default dynamic in the relationship
If you ask people why marriages fall apart, the answer you’ll hear most often is communication problems. And on the surface, that makes sense. Couples who are struggling usually aren’t communicating well. Conversations break down, arguments go in circles, and it feels like nothing is getting resolved.
But communication is usually the visible part of a deeper issue. What’s happening underneath the way couples talk to each other is what actually determines whether a marriage holds together or starts to break down over time.
And in many cases, by the time communication becomes a clear problem, something more foundational has already shifted.
Understanding that difference changes how you look at your own relationship, because it shifts the focus away from how you’re talking and toward what’s driving the way you’re talking in the first place.
Why “We Have Communication Problems” Misses the Point
Communication problems is the answer almost everyone gives when asked why a marriage is struggling. And it’s not untrue, most marriages in trouble do have communication problems. But blaming communication is like saying someone’s health is declining because they feel terrible. It describes the experience, not what’s actually causing it.
Poor communication in marriage is almost always downstream of something else. It’s what happens when contempt, resentment, or emotional distance has built up enough that honest, productive conversation stops being possible. Fix the communication style without addressing what created it, and you’ll be back to square one within months. Most couples who have tried “working on communication” already know this.
The real question isn’t how you’re talking to each other. It’s what’s happening underneath the way you talk to each other.
What the Research About Divorce Says
Gottman’s research, which followed thousands of couples over decades and could predict divorce with striking accuracy, pointed consistently to one pattern as the strongest single predictor: contempt.
Contempt is a very real thing. It’s not anger, which still implies caring. It’s not frustration, which implies investment. Contempt is a feeling of superiority toward your partner. It shows up in eye-rolling, in a particular tone of voice, in sarcasm that has an edge to it, in the subtle but consistent communication that says “I’m above this” or “you’re beneath my patience.”
Gottman called contempt the sulfuric acid of relationships. It eats through goodwill faster than any other pattern, because it doesn’t just create conflict. It erodes the basic respect that every relationship needs to survive disagreement.
The hard part about contempt: It doesn’t usually start as contempt. It usually starts as disappointment. Disappointment that goes unnamed, unaddressed, and unresolved long enough that it gradually curdles into something sharper (and more hurtful).
The Slow Erosion That Most Couples Miss
This is the part that gets almost no attention in the conversation about divorce, the years of quiet accumulation that happen before anyone would describe the marriage as seriously troubled.
It usually starts with something small. A comment that landed wrong, a pattern of feeling unheard. A slow growing sense that your partner doesn’t really see you or respect what you bring to the relationship or you feel like roommates. None of it feels dramatic. None of it, on its own, is the kind of thing you’d bring to a therapist or tell your friends about.
But over time, those small moments stack. Like little paper cuts and jabs. The unspoken disappointments become a background hum. The way you look at each other starts to carry it. You stop giving the benefit of the doubt. You start interpreting neutral behavior through the lens of everything that’s come before.
And at some point, without either person having made a conscious decision, the relationship dynamic has shifted from partners who have problems to partners who have stopped fully respecting each other. That’s when communication becomes genuinely hard, not because the words are wrong but because the foundation underneath them has been quietly deteriorating for years.
The signs this slow erosion is happening:
- Sarcasm has become a more common tone than warmth, even in light moments
- You find yourself rolling your eyes at things he says or does, sometimes internally
- You’ve stopped giving him the benefit of the doubt in low-stakes situations
- When you talk about him to other people, the affection in your voice has gone flat
- You feel more like colleagues managing a shared situation than partners in a relationship
None of these alone means your marriage is over. But they’re worth taking seriously because this pattern is much easier to interrupt early than it is to reverse once it’s fully established.
The couples who catch it and do something about it before it becomes the default are the ones who look back years later and say “we almost lost each other.” The ones who don’t catch it are the ones who end up wondering what happened.
Leave a comment below if this was helpful or resonated with you ❤️
Sources:1Gottman.com – This One Thing is the Biggest Predictor of Divorce
