[Jack_]

Only you know how your best friend would react to you asking if his girlfriend had a problem with you or not, so you just need to assess how you think he'd react. You can dress the question up and make it sound like you're upset about it (I assume you are, it's not ideal), i.e. something like 'I've been wondering...does _____ have a problem with me, do you know? I really hope not cause I've no problem with her at all' or something. That of course all depends on whether he does actually know, so I guess that's another problem :/

As for your family situation...Christ, I don't know where to start. First of all by saying I'm very sorry to hear that, I actually felt sad reading it and I've not experienced it first hand from your perspective so I can't imagine what it must be like! The problem here is obviously your brother's wife. She needs help (and that doesn't even need to be in a bad way, alcoholism is a terrible condition that ruins lives and relationships, which is evident here). Can your brother not see this? Is it the alcohol that makes her so horrible? I'm assuming it is. In which case, this is the decisive factor which could change everything. It's finding a way of getting her help that is the problem here. Sort it out, and things may change and all fall back into place (well, that is of course assuming your parents forgive him/them).

I do have to say though that even if she doesn't get help, I cannot see him lasting in a relationship like that forever. I'd say there's a 10% chance of it lasting, it's just destined to fail. You can't keep whoring yourself out as someone's little bitch forever, most people would eventually say enough's enough and reach a dead end where it's time for things to change. If not or as well as that, the alcohol will surely only increase her aggression. A lot of marriages end up with recurring arguments and alcohol could only make that worse, surely? If they end up arguing a lot and there's no love left...then as most marriages in those situations end up, it's over anyway. So I don't know, I just think it's unlikely to last unless she ends up changing.

If I think of anything else I'll add it...this probably hasn't even helped but it's late, I'm tired and I'm rambling. All the best with it though, it'll sort itself out sooner or later.