TweetA drinking problem is an alcoholic, imo. Of course you love her but you CAN"T change her. That has to be all her. The BEST thing you can do for her, and yourself is walk out. That may be what she needs, but you really need to focus on what you need. You may realize how less stressed your life is without her? Good luck to you and hang in there.
Noone can tell you what to do, but you will know when you have had enough.