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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To ditch a friend for cheating on her OH?

152 replies

SeenHerSelina · 05/09/2025 16:24

Been best friends since each of our first kids were born 16 years ago, I thought I knew everything about her. Always thought her OH was a bit quiet, maybe even unsociable but that contradicts all the stories about him from my friend about how outgoing he was before kids came along, and maybe quite naturally kids changed all that. BY all accounts though he’s a nice bloke, good Dad and very attentive and romantic to his OH.

I’ve been out occasionally with my friend over the years, she attracts the attention of men but nothing unusual in that I guess.

Through a mutual friend I heard what I thought/hoped was an unthinkable rumour that she’d been unfaithful with someone it turns out we both know. When I put it to her thinking it was scandalous, she told it was true and the details even more gruesome than rumoured. She then went on to reveal that before they had kids she’d been cheating behind his back for years.

I’m totally shocked and struggling to see her the same way I did before. I can’t help but feel deceived, but I also feel completely stupid for judging her OH.

There is one occasion that I can’t get out of my head a few years ago when I left her walking back from a night out with a guy. A few weeks later her OH made passing reference about her coming home the following morning, assuming she’d stayed at mine. I haven’t asked her about it, I almost don’t want to know.

AIBU to just ditch her as a friend?

OP posts:
TheCheekyCyanHelper · 14/09/2025 01:46

WarmWasabi · 05/09/2025 18:28

This is an actual friendship. PP take note.

No, this is a complete lack of ethics and morals. Someone who would support an emotional abuser.

TheCheekyCyanHelper · 14/09/2025 01:48

Patchworkpatty · 05/09/2025 21:44

So I am having an affair. My husband is a chronic alcoholic who was told he had a choice between continuing to drink and dying of alcoholic dementia in the next 2-3 years Or stopping drinking completely and the chance of a normal life expectancy. He is 58. He chose 2-3 more years of ‘fun’.
Im condemned to watch him die. Whilst caring for someone with dementia.
My boyfriend helps make it all bearable.
our kids know
our friends know
they are all very happy for me but at the same time love their dad/friend. Alcoholism is a disease but they don’t want me to waste my life away on someone else’s life choices.

why tell you this ?
to demonstrate that life is NEVER straightforward.

my best friend has never judged and understands. You will never know what goes on in someone else’s marriage.

You get a divorce. You don't cheat. That your kids support you, says a lot about how you raised them, and what they will do and possibly are doing to their own spouses.

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