My friend has been chasing after this guy for about a year, they're always on and off but never actually gone out.. hell meet her and sleep with her and tell her he likes her etc. but only when he's really drunk...
Its so abvious to everyone around my friend that she should really try and get over him and movfe on, but she keeps aking excuses for him, listening to him when he's drunk etc, and now I'm so worried about her because she's an emotional mess! I'm the only one of her friends still properly there for her, everyone else has got sick of heraing about this lad and just tell her he's a prick and to get over gim, but she gets really mad at them for not being supportive..
I've said all I can to get her to stop chasing this guy.. what more can I do!

There is nothing you can do. Do you want to put a chastity belt on her and keep the key? She needs to grow up and realize she is being used... unfortunately as a friend, there is only so much you can say before it becomes her problem to deal with. Sorry man, but until she puts a stop to this, you are helpless.

You can't do much besides voice your opinion and let her make her own stupid mistakes. She's her own person and you cannot control her life or her decisions.

I didn't say you are trying to control her... I said there isn't really anything you can do... she is her own PERSON.

You've been there for her in relation to this guy for what appears to be a long time. There comes a time when you have to pull a friend aside, tell them you care for them, but will not stand around and listen to them complain constantly about a problem they have no intention of fixing, especially when you've given them advice.

Ask her to not talk about it with you until she decides she wants to get on with her life and do something about the problem. And if she still wants to talk about it and lets it interfere with you being around her, then let her know you will always care about her but would rather not hang around her until she gets her head straight.

That's what I would do.