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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to think not every relationship that starts as an affair is doomed?

489 replies

LivelyHazel · 26/07/2026 14:11

I know this won't be a popular post at all and I’ll get piled on too but I don’t mind I'm genuinely just interested in people's views.

Fifteen years ago I met my now husband through a friend of a friend. We got on well, started meeting up going for drinks, food, dancing and, before I knew it, we were started sleeping together. It lasted about a month.He was married at the time. They didn't have children.

I'll be honest, I never expected it to become anything serious. I genuinely thought it would be a brief fling, we'd come to our senses and go our separate ways.

Instead, after about a month, he told me he wanted to leave his wife. I was actually quite taken aback because I hadn't expected him to do that. He said his marriage had been unhappy for a long time, although obviously I only had his side of the story.

He left, they divorced and we got to properly get to know each other, we took things slowly after that, and we're now married with four children. We've been together for 15 years and have a good family life.

Whenever affairs come up on here, the general consensus seems to be that the relationship is bound to fail, or that the ‘other woman’ never really ends up happy.That hasn't been our experience.

I'm not saying affairs are acceptable or that I feel proud of how our relationship started. I know people were hurt, and I wouldn't wish that on anyone. But equally, I can't pretend I regret the life we've built together.

Not necessarily AIBU more so discussion based on the previous posts I’ve seen on here

OP posts:
Noodge · 27/07/2026 12:38

Marmalademorning · 27/07/2026 12:34

I think you’re either a person who’s willing to cheat on a partner, or you’re not.

My brother cheated on his first partner at least once - and guess what? He’s cheated on his current long-term partner who was the OW. I know because I saw him with another woman several years ago. I never said anything and they are still together.

I’m guessing it’s not the first time he’s cheated on her, but I don’t have any sympathy because she cheated with him in the first place.

I don't think that's true. My Mum cheated on her ex because she was endangered by him, abused by him and he was a rubbish partner/father. She hasn't cheated on my Dad.

If you cheat because you are deeply unhappy or in an abusive relationship, it doesn't mean you'll cheat once you're in a happy one.

Marmalademorning · 27/07/2026 12:34

notatinydancer · 27/07/2026 12:11

I don’t believe once a cheat always a cheat. Sometimes people marry the wrong person. No one who is happily married has an affair.

I think you’re either a person who’s willing to cheat on a partner, or you’re not.

My brother cheated on his first partner at least once - and guess what? He’s cheated on his current long-term partner who was the OW. I know because I saw him with another woman several years ago. I never said anything and they are still together.

I’m guessing it’s not the first time he’s cheated on her, but I don’t have any sympathy because she cheated with him in the first place.

notatinydancer · 27/07/2026 12:11

I don’t believe once a cheat always a cheat. Sometimes people marry the wrong person. No one who is happily married has an affair.

ThatCyanCat · 27/07/2026 12:07

Two2TooAlsoToToward · 27/07/2026 12:00

I think the difference is that you have informed consent about your sexual health. If you are in a non-monogamous relationship unknowingly, your right to choose whether to engage in sex on that basis is removed.

I see this point, but I don't know how much difference it would make if my husband reassured me they'd used condoms, had checks, done other stuff but stopped short of things that could transmit disease and so on. It's good not to have to worry about that, definitely, but if he's still out of love with me, leaving for someone else and I and our children have to go through all the consequences of that... it's good not to have that added burden, yes, but I'd still have everything else and I don't know if I'd be thinking how wonderful it was that he was only going to start full shagging now.

I just hope I never find out.

PansyZer · 27/07/2026 12:06

It's possible for it to end well. Sometimes an affair begins because the two parties feel like they found the one, and they're so thrilled to be together. The deception was out of character and not their usual way of doing things. It works out.

I think it's quite rare though. To be capable of having an affair you need to be capable of a certain level of deceit towards people you love or care about or have made a commitment to. I don't so much think it's as concerning if someone cheats and immediately confesses. The cheating isn't great, but there isn't deceit involved by lying to the partner for a period of time. They did it and then lived with the consequences. At least the betrayed partner knows what their relationship is, truly.

That kind of deceit needed to sustain an affair is a character trait that shows up in other ways. If you're capable of doing it once, it's in you to do it again. Clearly infidelity isn't a red line you would never cross. It's tolerable to you if it benefits you.

Ultimately if a relationship starts with lies then it's likely to involve them too, down the line... once a cheater always a cheater. It's a bed of sand to build a life on. But people do it all the time. Of course it may look like a happy marriage from the outside but only the individual knows whether they have been unfaithful or not, and there are many ways to cheat. You may think it's all worked out beautifully because you have no idea you've been cheated on. Maybe though if you were okay with the deceit to begin with it isn't that big a deal. Lie with dogs, get fleas.

Two2TooAlsoToToward · 27/07/2026 12:00

ThatCyanCat · 27/07/2026 08:21

I've often thought this. MN is very much "it's totally fine if you just end your marriage first". But if my husband tells me today that he's fallen in love with someone else and he's leaving, and I suffer everything that follows from that, I can't see how I'd feel any better if he waited until after that conversation to sleep with her. What would the actual difference be?

I think the difference is that you have informed consent about your sexual health. If you are in a non-monogamous relationship unknowingly, your right to choose whether to engage in sex on that basis is removed.

Nighttimeistherightime · 27/07/2026 10:54

moonraker0 · 26/07/2026 14:22

My father has been married to my stepmother for over 30 years so it worked out for them. It caused a lot of damage at the time but if I’m honest I’ll never understand why he married my mother in the first place because they were not well suited.

Exactly the same situation here! My stepmum was my Mum’s close friend and a neighbour. It was hideous at the time and they always lied about how they got together, even to her kids. However, they were absolutely devoted to one another and a perfect match for over 30 years. My parents’ marriage was awful, they were not suited at all but my Mum was devastated all the same. I struggled with my Dad’s behaviour and the lies, especially at the time.

OtterlyAstounding · 27/07/2026 10:44

Freshfromthefight · 27/07/2026 08:47

Pretty much, yes. In reality they’d been having trouble for a long time and had been having couples’ counselling etc, so it wasn’t like a bolt from the blue. I’m sure he saw it as being honest and honourable but it was quite brutal.

I think men usually don’t leave unless they’ve got a replacement lined up. I didn’t want to be that replacement and made sure he was able to be by himself before anything happened between us. Being truly honest, if it hadn’t worked out between us I didn’t want to be stuck with him out of guilt. Luckily it did work out eventually!

He sounds utterly unhinged, honestly. And he really screwed you over by giving his wife reason to think you were having an affair. But if you've been married for 20 years, I suppose he must have some good points!

Noodge · 27/07/2026 10:26

My parents met when my Mother was married (to an abusive arsehole but married nonetheless). They got married when she was pregnant with me and are still married. I am 44.

Littlepurpleridinghood · 27/07/2026 10:13

Freshfromthefight · 27/07/2026 09:48

You’re really making stuff up now. I never said either of us thought it was destiny or soul mates or anything like that. We just realised that we were attracted to each other, and the feelings were deeper than just good mates.

Ah well,
It seems the subtle nuances of English Lit doesn't float your boat.

Weekendnaughtiness · 27/07/2026 10:08

Almost as bizarre as going on to marry him

Weekendnaughtiness · 27/07/2026 10:08

Freshfromthefight · 27/07/2026 09:48

You’re really making stuff up now. I never said either of us thought it was destiny or soul mates or anything like that. We just realised that we were attracted to each other, and the feelings were deeper than just good mates.

Fact is after one hug

the next time you saw him, he bowled up to and told you I’ve finished with my wife because of you.

And you were very pissed off

so it is is bizarre you’re trying to convince us this man is anything other than vile

something2say · 27/07/2026 09:50

He didn't cheat on her no, and nor she on him...

The narrative isn't being proven I'm afraid.

Freshfromthefight · 27/07/2026 09:48

Littlepurpleridinghood · 27/07/2026 09:41

@Freshfromthefight "We both knew when we hugged that day that something had changed and there were strong feelings there."

Or alternatively "We realised there was something big and meaningful developing between us "
Or "We knew at that moment we were twin souls that should never be parted and we set about shaping our mutual destiny"
Or "He realised that ours was an unspoken love that should not be denied and he decided to make it a reality"

Listen up OP, Mills & Boon are looking for writers for their mushy crappy romances novels, have you thought of applying ?

You’re really making stuff up now. I never said either of us thought it was destiny or soul mates or anything like that. We just realised that we were attracted to each other, and the feelings were deeper than just good mates.

Gloriia · 27/07/2026 09:46

something2say · 27/07/2026 09:22

My mother had an affair with a married man - my 'I'm so much better than everyone else' mother - he left his wife and they were together until he died 41 years later.

I agree with the OP - it is not ideal, but sometimes young couples are not suited, but then their life choices make them stuck.

I have found that most wrong situations have a way of not working out.

They might have been together 41yrs later but I'd bet a tenner one or both will have cheated again. The first time cheats maybe leave marriages and set up new homes etc, then they learn how to have their cake and eat it. It's a mindset, feel bored so seek a thrill. They just get better at the lies.

LilOleMe2 · 27/07/2026 09:44

In sn earlier post you said 'all men are the same'. They aren't. A leopard doesn't change its spots.
I think you are very naive if you think he doesn't shag around behind your back when temptation and opportunity presents itself.

Littlepurpleridinghood · 27/07/2026 09:41

@Freshfromthefight "We both knew when we hugged that day that something had changed and there were strong feelings there."

Or alternatively "We realised there was something big and meaningful developing between us "
Or "We knew at that moment we were twin souls that should never be parted and we set about shaping our mutual destiny"
Or "He realised that ours was an unspoken love that should not be denied and he decided to make it a reality"

Listen up OP, Mills & Boon are looking for writers for their mushy crappy romances novels, have you thought of applying ?

Freshfromthefight · 27/07/2026 09:36

Littlepurpleridinghood · 27/07/2026 09:10

"But that’s proving my point." No it isn't.

"People say if you’re unhappy you should leave the marriage before starting a new relationship."
Yes, but you should own your own shit and not make someone else the excuse for your choices.

"The only way to be ‘honorable’ is to stay in an unhappy marriage" That's pants, and you know it.

I’m not defending him, but it was more “We’ve given this our best shot and it’s not working. I’m really sorry but I’ve developed feelings for someone else and it’s shown me that it’s definitely over between us” rather than “I’m leaving you for a mate I’ve never even kissed and it’s her fault”.

SoBoredOfSelfDoubtHowToGetOut · 27/07/2026 09:34

Freshfromthefight · 27/07/2026 08:01

People will often say “If you’re unhappy you should just leave rather than have an affair” but to be honest, it makes zero difference.

I met DH at work and we became friends. He was married and I was single. And we were genuinely just friends, he was never flirty and I didn’t fancy him. But our friendship grew closer over time and one day we hugged and I knew something had changed, even though it would have just looked like a quick innocent hug to anyone else.

The next time I saw him he told me he’d gone home and told his wife that he’d fallen for me, and left. He wanted to be with me. I was actually really pissed off that he’d put me in the middle of all this drama even though I had strong feelings for him too. Absolutely nothing sexual had happened between us at this point.

I told him that if his marriage was definitely over, then leaving his wife was the right thing but he shouldn’t do it for me because I couldn’t give him any guarantees. But if he was in any doubt, he should try and work on his marriage and forget about me. He saw a therapist and got together as a couple a few months later.

We’ve been married for 20 years, but I’ve still always been labelled as the OW and his exW understandably hates me. I don’t think people are any more forgiving even when there technically hasn’t been an ‘affair’.

He left his wife because of a hug with you.

This made me laugh.

And you married him.

What if he hugs someone else? 😂

ThatCyanCat · 27/07/2026 09:30

They've been together so long that I actually forgot about them until just now, but a friend's mother started sleeping with her now husband (he was a widower) before she officially ended her marriage, which was absolutely moribund and had been for years. They've now been married to each other for longer than her first marriage (I don't like to compare to his because they were very happy and everyone expects they'd still be married if she'd lived).

They are awful parents and really selfish and unlikeable people; only one of their five combined kids (they have none together) still speaks to them. In that sense, they're rather suited. The adult kids don't resent them for the affair, but there's plenty of other stuff.

Tamtim · 27/07/2026 09:25

I have a friend who married her affair partner and they’ve had a happy relationship for years.

something2say · 27/07/2026 09:22

My mother had an affair with a married man - my 'I'm so much better than everyone else' mother - he left his wife and they were together until he died 41 years later.

I agree with the OP - it is not ideal, but sometimes young couples are not suited, but then their life choices make them stuck.

I have found that most wrong situations have a way of not working out.

Littlepurpleridinghood · 27/07/2026 09:10

Freshfromthefight · 27/07/2026 09:05

But that’s proving my point. People say if you’re unhappy you should leave the marriage before starting a new relationship. That’s exactly what he did, but it’s just as bad as having an affair.

The only way to be ‘honorable’ is to stay in an unhappy marriage, which isn’t great either.

"But that’s proving my point." No it isn't.

"People say if you’re unhappy you should leave the marriage before starting a new relationship."
Yes, but you should own your own shit and not make someone else the excuse for your choices.

"The only way to be ‘honorable’ is to stay in an unhappy marriage" That's pants, and you know it.

Weekendnaughtiness · 27/07/2026 09:07

Freshfromthefight · 27/07/2026 09:05

But that’s proving my point. People say if you’re unhappy you should leave the marriage before starting a new relationship. That’s exactly what he did, but it’s just as bad as having an affair.

The only way to be ‘honorable’ is to stay in an unhappy marriage, which isn’t great either.

He had a hug with you

and the next time he saw you he told you he’d left his wife because of you

You were understandably very pissed off

What a truly gross man 💐

Freshfromthefight · 27/07/2026 09:05

Weekendnaughtiness · 27/07/2026 08:54

What a complete twat he was

to you and his wife

shudder

But that’s proving my point. People say if you’re unhappy you should leave the marriage before starting a new relationship. That’s exactly what he did, but it’s just as bad as having an affair.

The only way to be ‘honorable’ is to stay in an unhappy marriage, which isn’t great either.