To cut ties..?

[EmberFawn]

My childhood friend is married to someone who likes a drink. He will drink every night, weekends he will start at lunchtime, sometimes earlier. Socialising with him is awkward and uncomfortable as I don't drink and he can behave in a way that becomes suggestive and sometimes volatile. They have a son my sons age, they are best friends and I don't want to jeopardise my friends relationship either. I am recently single and he came onto me, my friend seems okay with this and doesn't seem to see his drinking as a problem. I told him at the time that will never happen again and I kept my distance for a while. Meeting again last week, he had begged for us to meet him and my best friend and it was clear he had been drinking all day. He was crude, making filthy comments and it was just unbearable. I have ignored all messages from him and messaged her but she has ignored me.
AIBU for throwing away a 30+ year relationship with my best friend because of her husbands behaviour?
My problem isn't with her but meeting without him isn't possible because they do everything together. I don't need friends like that do I..

Hell no would I want to be around a twat like that! How low is your friend's self esteem that she's not bothered by him coming on to you? I don't think it's unreasonable to create some distance. Alcoholics are fucking annoying

No that’s awful. Ditch them. Your son doesn’t need to see adults behaving like that.

Hes messaging you on your phone?
So block him
Tell her anytime she wants to see you let you know alone as the partners a drunken creep.
Simple.

He's horrible, she's clearly in denial.

See her alone or not at all, and tell her exactly why.

How old at the children? I wouldn't want my child to be in that house.

Of course you aren't been unreasonable in not wanting anything to do with him.

Is your friend aware of the organisations like Al- anon that give help and support to the families of alcoholics?

I would make it clear to your friend that you don't want anything to do with her H but if she decides to help herself by leaving him then you will be there as a friend for her.

All I can think is her poor, poor son growing up in that awful environment.
But to answer your question, no you are absolutely not being unreasonable.

What has he been messaging you? Is it inappropriate?

Why is your friend now ignoring you?

I think she has made the decision to end the friendship by ignoring you.

Thanks for all the replies, makes me feel like I'm doing the right thing. The boys are 10 and 11 so aware of behaviours, I can tell his son hates it when he drinks and has said something previously.
I feel like I shouldn't feel bad for not wanting to be in his company and my best friend obviously doesn't value our relationship if she doesn't understand why I feel that way. It's his doing and I gave him a chance after he came onto me and always made a conscious effort to meet earlier in the day when I knew he'd be sober (ish).
Regarding my best friend not being bothered about him coming onto me, they have been known to get involved with other people, openly, shall we say, so it's not a big deal to her. I don't want to be made to feel uncomfortable so I know I'm doing the right thing