I agree with everything tgf said as well. I think it sounds like your gf has a serious drinking problem, and of course going to bar friends for advice is not helpful for her. I think you should try to get as healthy and strong as you can, and then see what happens. Maybe she will work on her own problems and maybe not, but you have no control over that of course. That's why you have to start focusing on you and you will find yourself becoming stronger and happier!!!
Don't forget to visit other threads here as well, some of us have spouses that have drinking problems as in your sitch and you may find that helpful I think. I hope Sue doesn't mind, but I would recommend her thread for example. She is further along in the process than you are, and you can see how strong & how well she is doing. She is very inspiring for me (as well as many others here). Karen