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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to think the "100% sure he’s never cheated" crowd are naive and delusional?

624 replies

IceCream233 · 18/07/2026 06:16

I’m looking for a bit of a reality check on relationship statistics.

I often see threads on here where 80% to 90% of posters insist they are absolutely, 100% certain their husband has never cheated.

Trust is great, obviously, but looking at actual statistics, it's just mathematically impossible for everyone to be right.

General studies on infidelity show that around 50% of married men will stray at some point. Plus, we all know that a massive chunk of people who cheat are just careful enough that they never get caught.

The math completely falls apart here. It means a huge portion of women who feel totally secure right now are actually being lied to, they just don't know it yet.

Are people just telling themselves "not my husband" as a coping mechanism to keep themselves happy? Is a bit of delusion just a basic requirement to survive a 20-year marriage?

AIBU for looking at the cold numbers instead of just relying on a gut feeling?

OP posts:
Backtobroc · 19/07/2026 14:53

Gloriia · 19/07/2026 14:36

If you read my posts you'll see that I know plenty of people who thought it would never happen to them and were sadly wrong, always dull blokes who you wouldn't think had it in them.

I don't think any one of us should be naive. Obviously we shouldn't live in a constant state of suspicion but there's a middle ground. Live your life just don't think they'd never do that. Many do.

But your life experience…. Never been cheated on?

MixedBouquets · 19/07/2026 15:48

JuliettaCaeser · 19/07/2026 12:13

Yes of course I don’t teach my daughters to rely on a man and you need to be able to support yourself etc. But don’t we all rely on each other? If you’re so suspicious and cynical that you can’t ever let go and always need to be fiercely entirely self supporting that’s a sad way to be. And sorry but there are posters that judge and look down on women that aren’t career focussed.

I'm not remotely 'suspicious or cynical'. I've been happily married to DH for aeons. But, regardless of whether you are 'career-focused'. no one should rely on anyone else financially past childhood. It improves any relationship, whether friendship/romantic/marital/sexual for it to not be complicated by one-way financial dependence.

I do not for a moment judge anyone who isn't 'career-focused' -- some people just want a job they leave at the door and that doesn't occupy much of their mental energy. Society needs people to do those jobs as well as split the atom, build bridges, cure cancer, write symphonies.

But I think women who have no capacity to earn a living in order to support themselves and their children are making a grave mistake. Being 'fiercely self-supporting' is one of the best things you can do for your marriage, for your children, and for your own MH. And I think it's deeply tragic that you view a woman being financially self-supporting as some kind of radical act, redolent of suspicion and cynicism. You must have had very poor female role models.

impartialusername · 19/07/2026 16:08

Anyone will cheat given the opportunity and the right circumstances. In my 20s I worked a job that was very much a once in a lifetime opportunity with people you might never see again.. I don’t know any married men that didn’t cheat given those circumstances

cloudtreecarpet · 19/07/2026 16:24

YankSplaining · 19/07/2026 13:56

I’m sorry to hear that. Psychology aside, my husband doesn’t have the opportunity to have an affair because he’s nearly always at home, with me being in and out of the house with no set schedule.

I don't hold with the idea that everyone has it in them to cheat which is often stated on here & I am sure your relationship is fine & your instincts correct.

However, all I would say is that these days access to the internet is all that is needed to start something so wfh makes no difference.
If you are at SAHM I hope you have future plans to gain more independence. Just in case.

Dawnintheageofaquariams · 19/07/2026 16:39

Didimum · 19/07/2026 08:07

For the second time, I didn’t say men don’t use sex workers, I said your arithmetic was incorrect. Do I need to point that out a third time or have you grasped that yet?

Woolen bagpipe.

Gloriia · 19/07/2026 16:44

Backtobroc · 19/07/2026 14:53

But your life experience…. Never been cheated on?

None of us know do we unless our dps are caught red-handed. My point, again, is I have friends who have been absolutely shocked by being cheated on, they didn't think their dp was like that, they are never apart etc etc.

Many people given the opportunity are like that unfortunately so none of should become complacent.

Lampzade · 19/07/2026 16:45

I am happily married and dh is a good man, but I cannot say hand on heart that he has not or would never cheat .
I would never vouch for any man tbh
In fact, I can’t even vouch for myself
Yes, it is naive to think that your dh would never cheat .
Men with the most beautiful, intelligent , sexually liberated wife still cheat

YankSplaining · 19/07/2026 16:51

cloudtreecarpet · 19/07/2026 16:24

I don't hold with the idea that everyone has it in them to cheat which is often stated on here & I am sure your relationship is fine & your instincts correct.

However, all I would say is that these days access to the internet is all that is needed to start something so wfh makes no difference.
If you are at SAHM I hope you have future plans to gain more independence. Just in case.

I don’t have plans to “gain more independence,” and neither does my husband. We both depend on each other for different things because we’re a team. Also, having me at home is what works best for our family, both immediate and wider. I have ADHD and it’s about all I can do to keep the house running; both our kids have ADHD and benefit from being taken care of by someone (me) who understands that so well; and my mother is the full-time caregiver for my father, who has Parkinson’s disease, and needs me to stay with him on occasion so she can get time for herself.

If it makes you less worried, I’m a licensed attorney, and I’m set to inherit several lots of highly covetable land when my parents die. (My parents get at least an offer a year for them even though none are on the market.) I should end up with around $1 million USD in liquid assets and a couple more million in property.

Cheeseandolivesplease · 19/07/2026 16:54

@YankSplaining What would your plan be if you ever found out he was cheating on you?

cottoncandy260 · 19/07/2026 17:00

I’m quite intrigued by all these women saying by husband/partner would never cheat because he’s so socially awkward/doesn’t know how to flirt/lacks confidence around women etc etc. And yet, somehow you got together with him. That must make you the only woman in the entire world who has managed to capture your husband’s interest and desire. What an achievement.

This to me seems a) very naive (and somewhat arrogant) and b) makes you husband sound almost asexual as if he has no interest in flirting or thinking about any other women because he only has eyes for the sole woman in the world who rescued him from his social ineptitude. How lucky and reassuring for you.

TheRealMagic · 19/07/2026 17:03

Gloriia · 19/07/2026 16:44

None of us know do we unless our dps are caught red-handed. My point, again, is I have friends who have been absolutely shocked by being cheated on, they didn't think their dp was like that, they are never apart etc etc.

Many people given the opportunity are like that unfortunately so none of should become complacent.

What does not becoming complacent look like?

Butnotreally1 · 19/07/2026 17:21

Gloriia · 19/07/2026 16:44

None of us know do we unless our dps are caught red-handed. My point, again, is I have friends who have been absolutely shocked by being cheated on, they didn't think their dp was like that, they are never apart etc etc.

Many people given the opportunity are like that unfortunately so none of should become complacent.

Sadly in your experience it would seem (or at least in your friends).

Butnotreally1 · 19/07/2026 17:22

Many people given the opportunity are like that

how have you come to this conclusion? From mumsnet threads? Or are you surrounded by friends and family who have been cheated on?

Butnotreally1 · 19/07/2026 17:22

TheRealMagic · 19/07/2026 17:03

What does not becoming complacent look like?

Good question

Gloriia · 19/07/2026 17:31

TheRealMagic · 19/07/2026 17:03

What does not becoming complacent look like?

Well, saying 'it would never happen to me' suggests complacency. We just don't know.

Butnotreally1 · 19/07/2026 17:32

Gloriia · 19/07/2026 17:31

Well, saying 'it would never happen to me' suggests complacency. We just don't know.

So what do you do in your marriage to avoid complacency?

Butnotreally1 · 19/07/2026 17:35

I think you probably spend an inordinate amount of time on the mumsnet Relationships forum @Gloriia

Gloriia · 19/07/2026 17:36

Butnotreally1 · 19/07/2026 17:22

Many people given the opportunity are like that

how have you come to this conclusion? From mumsnet threads? Or are you surrounded by friends and family who have been cheated on?

Like most people I dont live in a cave. I have met a variety of people over the years via courses, workplaces, school runs, activities and yes long term friends. This is normal, yes?

No not all have been cheated on but a surprising amount have and it's always the ones you'd least expect. Anecdotally of course, I haven't undertaken a national audit or anything.

Butnotreally1 · 19/07/2026 17:38

Gloriia · 19/07/2026 17:36

Like most people I dont live in a cave. I have met a variety of people over the years via courses, workplaces, school runs, activities and yes long term friends. This is normal, yes?

No not all have been cheated on but a surprising amount have and it's always the ones you'd least expect. Anecdotally of course, I haven't undertaken a national audit or anything.

Wow…. Sounds like dozens of people in your life have shared with you that their partner cheated on them. No wonder you have this view

Gloriia · 19/07/2026 17:41

Butnotreally1 · 19/07/2026 17:38

Wow…. Sounds like dozens of people in your life have shared with you that their partner cheated on them. No wonder you have this view

I didn't say dozens? I said a surprising number, it's right there in my post.

'So what do you do in your marriage to avoid complacency?'

If you don't know what it means just Google it. Sorry I thought everyone knew what it meant.

Butnotreally1 · 19/07/2026 17:46

Gloriia · 19/07/2026 17:41

I didn't say dozens? I said a surprising number, it's right there in my post.

'So what do you do in your marriage to avoid complacency?'

If you don't know what it means just Google it. Sorry I thought everyone knew what it meant.

you listed people off courses; multiple friends; colleagues; school gate mums; people who have met on activities

If I had encountered this number of people confiding in me that they’ve been cheated on… I think I might too have your view @Gloriia . Totally understandable to be very keen on the importance of “not being complacent” (wherever that means in practise)

Butnotreally1 · 19/07/2026 17:47

Gloriia · 19/07/2026 17:41

I didn't say dozens? I said a surprising number, it's right there in my post.

'So what do you do in your marriage to avoid complacency?'

If you don't know what it means just Google it. Sorry I thought everyone knew what it meant.

But what do you do in reality? Be alert to your husband going on more than usual? Smell perfume on him? Have sneaky looks at his phone?

Gloriia · 19/07/2026 17:56

Butnotreally1 · 19/07/2026 17:46

you listed people off courses; multiple friends; colleagues; school gate mums; people who have met on activities

If I had encountered this number of people confiding in me that they’ve been cheated on… I think I might too have your view @Gloriia . Totally understandable to be very keen on the importance of “not being complacent” (wherever that means in practise)

You said 'Or are you surrounded by friends and family who have been cheated on?' so I said where I know people from. It's normal friendships over the years. Well normal for me you perhaps don't know many people.

'But what do you do in reality?'

I'm hardly going to describe my very happy marriage to you but if you do know what complacency means you'll have your own ideas on how to avoid it, or maybe try relationship counselling they'll give you some tips?

TheRealMagic · 19/07/2026 18:06

Gloriia · 19/07/2026 17:56

You said 'Or are you surrounded by friends and family who have been cheated on?' so I said where I know people from. It's normal friendships over the years. Well normal for me you perhaps don't know many people.

'But what do you do in reality?'

I'm hardly going to describe my very happy marriage to you but if you do know what complacency means you'll have your own ideas on how to avoid it, or maybe try relationship counselling they'll give you some tips?

My marriage is also very happy, but I guess I am complacent about cheating, in that I can't remember the last time before this thread that I thought about the possibility DH would cheat on me. Is that a bad thing? If so, what should I do differently?

MrsPapillon · 19/07/2026 18:10

Butnotreally1 · 19/07/2026 17:47

But what do you do in reality? Be alert to your husband going on more than usual? Smell perfume on him? Have sneaky looks at his phone?

In my case, not at all. The opposite of complacency isn’t suspicion, it’s preparation!

I’m no longer complacent, but I don’t suspect DH or check up on him. I just know that there’s a small chance it might happen after my previous experience in my last marriage, so it won’t shock me so much. I’m financially prepared and I know if it did happen (God forbid) I’d be okay.

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