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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To end this friendship?

145 replies

Coldcalmcollected · 07/11/2026 17:35

I’m being asked to support someone and I can’t. It’s a long one.

Basically, my friend was in a long-term relationship with my BIL (DH’s brother), they met through me. She has always known that he did not want any more children (he has 2 with his ex-wife). She has, until recently, been fine with it- at least publicly. Obviously, I cannot know if she has secretly harboured other wishes but she has never given this impression (and, in previous relationships says she did not want children, so I’m inclined to think this is a change of heart). According to BIL, he has always been 100% clear that he does not want any more children and has never suggested he might change his mind- until recently she has never suggested she was unhappy with this situation. However, recently she decided she does want children. BIL’s view remained unchanged.

A few months ago friend had an “oops” pregnancy- I believe she deliberately stopped contraception without saying so (I.e. planned a pregnancy) based on something she said to me and my other SIL- but she quickly backtracked when both of us were fairly horrified at the “sometimes you just have to make it happen, if you get what I mean” comment.

I would agree she has the right to stop contraception any time she likes, but she should be honest with her partner as it’s a mutual thing if no contraception is being used. Equally, I think both parties have to accept contraceptive failures do happen. But deliberately not using it without saying so is utterly wrong and a huge betrayal of trust, in my opinion.

BIL had a vasectomy very quickly (privately) after he found out his partner was pregnant- against her wishes- as he was adamant he does not want more children. I think he probably should have done it sooner, but equally don’t think it unreasonable that he trusted his partner to take the agreed contraceptive. He was accepting of a contraceptive failure, though he was honest about the fact that he was not keen to keep the baby. He was obviously prepared to shoulder his responsibility to the baby, despite his lack of enthusiasm. I think this is totally reasonable.

Sadly, friend had a miscarriage at 14 weeks. She was, and is, devastated by the miscarriage. I do feel for her- despite the circumstances- and I know BIL’s palpable relief at the outcome probably made it harder for her. But, equally, I think he is entitled to his own feelings and never pretended he was excited to be a father again. Obviously, I have never said that to her- that is just my thoughts.

Anyway, I’d said to DH about what she’s said and that I thought this was very off. DH also thought that what she said was suspicious. It seems other SIL also told her husband. After he thought about it for a short period, he spoke to his other brother- and both decided to speak to BIL. This was around the same time friend miscarried. He told DH he had some suspicions but given events had decided to give her the benefit of the doubt (especially as it cannot happen again).

Anyway, he was devastated to have his suspicions supported and that his partner would do this- he confronted her. According to him she initially denied it, but eventually said she had accidentally messed up her contraception but had just not said anything, so it wasn’t planned in advance (he doesn’t really believe this and thinks it was a very deliberate choice, probably been the case for some time). However, even if it was a one-off slip, she still chose not to say anything which might have meant BIL would have used a condom or abstained- she apparently admitted to him that she thought he would have done one of those things if he had known the reality of the situation. He has ended their relationship. As they aren’t married, she is going to be in a significantly worse financial situation as she has no claim on any assets or their home.

I am in an awkward situation- I do feel sorry for her as she is understandably struggling with the miscarriage, the end of her relationship but equally think she has behaved terribly towards her ex-partner, who is a member of my family. She’s furious with me/us, but equally wanting support and for me to “speak to” BIL to convince him to give her a second chance.

I genuinely can’t do the latter- I think it’s not only not my place, I believe he is right to end the relationship. I can’t apologise for the former, as I don’t think it was fair to ask me to keep this to myself. In short, I don’t really think I am the right person for her to lean on right now. I think our friendship is essentially over. I think it was over the minute she admitted what she had done- I feel that if she understood me, she should have known what I’d think about her actions, and how I’d feel about being asked to keep it to myself when it is a member of my family impacted. I genuinely do not know why she told us/suggested this if she did not want anyone else to know.

Her mother contacted me to say how much friend is struggling and how worried she is about her mental health, and also how disappointed she is that I haven’t been there more for her. The thing is, my friend just wants to rant about what a POS he is to have dumped her weeks after a miscarriage, making her leave their home etc. our friendship group is split- I’d say 3/4 agree what she did was utterly repugnant, and she put myself and other SIL in an awkward situation by telling us and expecting us to say nothing. The others feel that what she did “wasn’t ideal” but that she doesn’t deserve to lose her relationship, home etc over it and the miscarriage should have bought her some grace. This is going to cause problems in our group. I’m ok with this, although I am
sad as we’ve been friends for a long time, as others are entitled to their views.

I do feel sorry for her regarding the miscarriage, but I also think she is the author of her own misfortune and will have to live with the consequences of her actions. Her actions have absolutely rocked BIL too- he feels utterly betrayed, and is finding the violation of trust really hard to come to terms with. I just can’t pretend I’m ok with what has happened. AIBU?

OP posts:
JamJar187 · 07/11/2026 17:40

Your "friend" has been terrible.

Your BIL is well shot of her. Bottom line, she lied - massively. And karma has happened.

If I were you OP, I'd walk well away from her - her actions are her own to deal with.

LemonPuppyPorkChop · 07/11/2026 17:45

I think you’re way too involved here, and that passing on something she told you to your DH was an outrageous betrayal of confidence. Basically, this is the mess you get when you interfere.

Rainingasusual · 07/11/2026 17:45

I think what she did was abhorrent and equal (if not worse) to stealthing. You did the right thing.
I could not be friends with someone who did that. She does appear to have support, too.

Sweetandsours · 07/11/2026 17:47

Yanbu.
What she did was very poor, but telling you and your SIL was spectacularly naive and frankly dim.

Your BIL is rightly upset.
I admire men that don't feel the need to have children with every woman they are in a relationship with.

She has caused this upset.
I wouldn't want to be friends with her either.
She put you in a very difficult situation and you have chosen your family.

She shouldn't be surprised by this.

Tortephant · 07/11/2026 17:49

She knew what she was doing and pregnancy was her aim.
Your BIL needs your support, not her. You need to give him strength not to go back to her.

Hugasaurusrex · 07/11/2026 17:54

Yeah it is really hard to not feel some sympathy for her (you seem to feel the same) but I ultimately think it was a really shit thing for her to do.

I can completely understand any man not wanting more kids - that is a really hard line for any relationship, one which either party is entitled to make.

She should have ended her relationship instead of causing all of this upset to herself, BIL and her extended family by her actions.

But it really is an awful situation for her too.

Boreded · 07/11/2026 17:55

LemonPuppyPorkChop · 07/11/2026 17:45

I think you’re way too involved here, and that passing on something she told you to your DH was an outrageous betrayal of confidence. Basically, this is the mess you get when you interfere.

Wow!

I think that’s an extraordinary take. The OP’s BIL was potentially subjected to reproductive abuse by someone who knowingly concealed that she wasn’t taking their agreed contraception, precisely because she knew he would either use a condom or refuse sex if he knew.

Why on earth should the OP be expected to keep that information secret from her own husband, particularly when the person affected is his brother?

The friend created this situation through her own actions. The OP didn’t cause the betrayal by discussing it with her husband, and the BIL hasn’t done anything wrong by deciding he cannot remain in a relationship with someone he no longer trusts.

Calling the disclosure an “outrageous betrayal of confidence” while minimising the far more serious betrayal of the BIL is a very strange allocation of blame.

Coldcalmcollected · 07/11/2026 17:57

LemonPuppyPorkChop · 07/11/2026 17:45

I think you’re way too involved here, and that passing on something she told you to your DH was an outrageous betrayal of confidence. Basically, this is the mess you get when you interfere.

i can see your perspective- I don’t agree with it, but yes it was interference. That said, I think what she did was utterly unforgivable and also involved a deep betrayal of a family member- I would not have said anything if her partner had been a stranger or a distant acquaintance.

Also, if she absolutely did not want anyone to know, why tell two other people? My best guess is that she thought we’d think it was ok, which I find baffling.

I’d also have been concerned that if if ever came out, she’d have said “well, x and y knew, and didn’t say anything”, which would have caused problems in my relationship and with BIL/DH’s family.

I let DH make the decision as to whether to say anything, as he knows his brother well and I felt he’d know whether BIL would rather know or not. In his position, I’d rather know my partner was not the sort of person I thought they were and were prepared to do things that fundamentally violated my trust in order to get what they wanted. Wouldn’t you?

OP posts:
DahliaDelights · 07/11/2026 17:58

As you said, she is the author of her own situation.

She orchestrated a pregnancy that her partner categorically did not want

She’s furious with me/us, but equally wanting support and for me to “speak to” BIL to convince him to give her a second chance.

Absofuckinlutely not. Quite the opposite in fact! She's furious with you? She made her bed, she is in the FO stage of the FAFO. BIL is absolutely within his rights to firstly have a vasectomy (without her consent!??! its his body, he has autonomy) and secondly to end the relationship when hes discovered what she has done.

I'd be telling her in no uncertain terms I am sorry she is suffering the results of her actions but I agree with everything BIL has done and I'm no longer associated with her at all. Its better for all concerned that she did suffer the miscarriage after orchestrating a pregnancy with someone who didnt want a child. She's a despicable person.

Hugasaurusrex · 07/11/2026 17:58

LemonPuppyPorkChop · 07/11/2026 17:45

I think you’re way too involved here, and that passing on something she told you to your DH was an outrageous betrayal of confidence. Basically, this is the mess you get when you interfere.

I definitely could not support this position.

dermalermalurd · 07/11/2026 17:58

I cannot condone her behaviour, at all. But I am struggling to see your intervention as justified. I’d say butt out of other people’s relationships. It has all blown up way further than it needed to or would have done without your intervention.

Hugasaurusrex · 07/11/2026 18:00

Coldcalmcollected · 07/11/2026 17:57

i can see your perspective- I don’t agree with it, but yes it was interference. That said, I think what she did was utterly unforgivable and also involved a deep betrayal of a family member- I would not have said anything if her partner had been a stranger or a distant acquaintance.

Also, if she absolutely did not want anyone to know, why tell two other people? My best guess is that she thought we’d think it was ok, which I find baffling.

I’d also have been concerned that if if ever came out, she’d have said “well, x and y knew, and didn’t say anything”, which would have caused problems in my relationship and with BIL/DH’s family.

I let DH make the decision as to whether to say anything, as he knows his brother well and I felt he’d know whether BIL would rather know or not. In his position, I’d rather know my partner was not the sort of person I thought they were and were prepared to do things that fundamentally violated my trust in order to get what they wanted. Wouldn’t you?

I absolutely agree with you. She was trying to drag other people into her deception to ease her own internal turmoil over how she had acted.

WilmaaFlintstone · 07/11/2026 18:00

Your friend is awful.

But it sounds as though there's too many nose holes getting involved in their business.

Just stay out of it now and keep telling her you won't be getting any further involved.

Neighull · 07/11/2026 18:00

Yanbu

I see it as a kind of rape

BillieWiper · 07/11/2026 18:02

I really don't understand why you're so deeply enmeshed in these people's lives.
You can't control what they do with their reproductive organs or their contraceptive regimes.

Frankly I'd be keeping my nose out. Other people's desire for kids or not really isn't any of my concern. It's not helpful to try and get involved either. You'll only end up seemingly taking sides.

Clairescorner · 07/11/2026 18:03

She's lied and been manipulative. He's decided he doesn't trust her which sounds fair enough. He also knows that they are not compatible anymore (she wants kids, he doesn't want any more).

Frankly it's up to your brother in law if he wants to get back with her. It's not up to you is it? She made her choices and is just mad it backfired on her. It's a sad tale but she caused it all with her own actions.

WhosGotTheKeysToMyBimma · 07/11/2026 18:04

Hugasaurusrex · 07/11/2026 18:00

I absolutely agree with you. She was trying to drag other people into her deception to ease her own internal turmoil over how she had acted.

Agree. She expected you to keep silent on a massive betrayal of a member of your family.

It would have come out eventually and OP would have wished she'd said something at the time.

If OP had come across this information accidentally somehow then yes I think staying silent may have been the best thing. But she didn't and the ex friend is reaping the consequences.

Good for you for having your BIL back.

EdgyNewt · 07/11/2026 18:06

Your friend made a very big mistake, but she is also a human being who clearly wanted a baby despite saying otherwise.

The argument is between her and BIL. You were right to tell him the truth.

But now you need to take BIL out of the picture. If your friend had done that with some other bloke that wasn't BIL, would you be dropping your friend for her mistake? She clearly very badly wanted a baby and was willing to leave that to chance over not taking her contraception. And she has now lost the baby.

Personally I'd still be there for my friend as there is no way I could not be, despite the circumstances.

LemonPuppyPorkChop · 07/11/2026 18:06

Boreded · 07/11/2026 17:55

Wow!

I think that’s an extraordinary take. The OP’s BIL was potentially subjected to reproductive abuse by someone who knowingly concealed that she wasn’t taking their agreed contraception, precisely because she knew he would either use a condom or refuse sex if he knew.

Why on earth should the OP be expected to keep that information secret from her own husband, particularly when the person affected is his brother?

The friend created this situation through her own actions. The OP didn’t cause the betrayal by discussing it with her husband, and the BIL hasn’t done anything wrong by deciding he cannot remain in a relationship with someone he no longer trusts.

Calling the disclosure an “outrageous betrayal of confidence” while minimising the far more serious betrayal of the BIL is a very strange allocation of blame.

Bluntly, it’s not the OP’s business. I don’t disagree that what the SIL did was ethically wrong, but her husband was also irresponsible about contraception in the circumstances. I’d have told her that what she did was appalling, that she should tell her husband the truth, and that I didn’t want to hear another word about it, or any potential fallout, and taken a step back, because I’d be questioning my own judgement about having this person as a friend.

The OP is dealing with this precise level of family/friendship mess because she didn’t take it up with her SIL at the time, and told her exactly how poor her behaviour was, but tattled to her DH behind her back.

The choice wasn’t between ‘pretending it was fine’ and betraying your friend’s confidence to your DH.

honeylulu · 07/11/2026 18:08

What a mess.

What she did was very wrong and also very foolish to boast to others that she tricked him. Surely if you do something like that you should keep it to yourself forever.

Having said that, I know two people who tricked their partners into an unwanted pregnancy and then proudly told their friends and colleagues. One was quite a good friend of mine - she was very pleased with herself -and I was appalled and could never see her the same way after that. (I didn't say anything to her husband though, he still thinks it was an accident.) Interestingly I did post about it on here and the reaction from several posters was very much "serves him right, stupid man, good for her". So there are quite a few women who think like this. Your ex friend assumed you were one of them.

Oh well she's single now and even if he gave her another chance he's had the snip. So if she wants a baby she will have to find a new bloke anyway.

Overflowingbasket · 07/11/2026 18:13

LemonPuppyPorkChop · 07/11/2026 17:45

I think you’re way too involved here, and that passing on something she told you to your DH was an outrageous betrayal of confidence. Basically, this is the mess you get when you interfere.

I agree with this. Tbh none of you come out of this looking good.

My view, whatever the rights and wrongs of how she became pregnant - and men having sex with women do have to accept they might get pregnant - she is suffering terribly now. She is grieving a much wanted baby, the loss of her relationship and the loss of her home. As well as it, it looks like, some of her friendships. This is a hugely destructive and traumatic amount of loss for anyone to go through all at once and in one stroke. Her mother is right to be worried about her.

I certainly would not get involved in trying to recover her relationship, but I would absolutely be there for her as a friend.

ButtercupYellow26 · 07/11/2026 18:13

And you lot are way too involved and need to step away and mind your own business.

Passingthroughagain · 07/11/2026 18:24

EdgyNewt · 07/11/2026 18:06

Your friend made a very big mistake, but she is also a human being who clearly wanted a baby despite saying otherwise.

The argument is between her and BIL. You were right to tell him the truth.

But now you need to take BIL out of the picture. If your friend had done that with some other bloke that wasn't BIL, would you be dropping your friend for her mistake? She clearly very badly wanted a baby and was willing to leave that to chance over not taking her contraception. And she has now lost the baby.

Personally I'd still be there for my friend as there is no way I could not be, despite the circumstances.

This is a sensible take. Your friend did a foolish, selfish thing but god is she reaping it now. She’s lost her baby, he’s ended the relationship and she’s lost her home too. You can still check in with her.

Parttimersclub · 07/11/2026 18:24

If he didn't want a child he should have used condoms or had a vasectomy. He needs to take responsibility for that.

Im not saying she didn't do wrong but people do stupid things when emotions are involved and yes she'll have to live with those consequences but all friends turning their back on her is intentionally cruel. She hasn't deceived you, so why do you need to be so cruel?

JLou08 · 07/11/2026 18:26

I'd rather have your friend in my life than anyone else in this scenario. Yes, she messed up but for you and SIL to pass on that comment, which wasn't even an outright confession, was really, really shitty. Your husbands passing it on around the time of her miscarriage was shitty. Your BIL ending the relationship and making her leave her home just after a miscarriage was unbelievably heartless. You to not want to support your 'friend' through this is also heartless. I'm going to guess you and SIL weren't that keen on her being a part of the family before this happened.

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