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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To start resenting my BIL

31 replies

AnaisVB · 23/11/2025 17:45

My sister is married to a really lovely man. They have a three year old DD.

My BIL is a great partner and he adores my sister. He’s great with my kids, is close to all our massive family and has lovely friends, he works hard etc

BUT there is something driving a wedge between them and I can see it hurting my sister.

Basically whenever he goes out - which is fairly regularity due to his job- he tends to get really drunk and come home late and does stupid things . The latest is he got up in the night so drunk he thought the bedroom was the bathroom - you can see where this is going! Then he was too hungover the next morning to drive them a couple of hours to see some family . Or he comes home and even if it isn’t late he carries on having a drink and then is disruptive , playing guitar or not coming to bed until late . My sister works full time in a busy job and is fairly regularly missing sleep because of it . She also has had some health problems lately and is more tired than usual and I feel like he should be taking this more into account.

When he is sober and in the cold light of day he is always apologetic. They’ve even talked to a therapist about it (and the therapist has agreed with my sister that it feels unfair to her)

The other day my sister looked broken, she is feeling fed up and feels let down because he doesn’t seem able to change even though he says he will.

She doesn’t want to be a killjoy and is really relaxed about him seeing friends etc but now it feels like when he goes out she gets anxious because she is worried how the night will go.

Fyi They don’t have a spare room and when he comes in it’s quite disruptive as it’s only a two bed apartment.

Sidenote our mother was an alcoholic growing up and we might be really hypersensitive to alcohol related things, so it’s potentially triggering her, and she doesn’t know if she is being unreasonable.
Has anyone had similar or been able to address it?
It’s not my place to say anything but I’m worried about her and a bit him too, but I’m starting to feel annoyed with him because he’s making her unhappy and she’s not feeling heard . Does it sound like he has a problem or is it just normal?

Sorry for long message! x

OP posts:
FuzzyWolf · 23/11/2025 18:12

I’m struggling with you saying he’s a lovely man and great partner before then going on to describe a selfish alcoholic.

BoyMumFTM345 · 23/11/2025 18:10

He's an alcoholic. I know a few. They never changed.

Your sister has to leave him. Or she'll be a bitter old woman one day who will have wasted her while life on an alcoholic.

DisforDarkChocolate · 23/11/2025 18:07

He's not lovely. He's an abusive drunk.

She needs to leave him before it gets worse.

toomuchfaff · 23/11/2025 18:04

If there is no spare room, and he is apologetic and aware of his problem, maybe the suggestion is that if he is going out with friends then he doesnt come home. So your sister isnt disturbed.

You know where this is going...

TomatoSandwiches · 23/11/2025 17:57

I presume they have no children?
If so I would be advising her to leave ASAP, he is an alcoholic and he will continue to be disruptive until he has hit rock bottom. He isn't a partner, he is selfish and cruel to let your sister down so much when she is struggling and they've already talked about this.

Sleepyandtiredandlazy · 23/11/2025 17:53

He has an alcohol problem.

Unfortunately there is nothing you can do about it other than support your sister.
And encourage her to seek advice from Al -anon or similar organisations that offer help to families of alcoholics.
If he at the stage where he can't differentiate between his bedroom and the toilet he has a serious problem.