Luv, I also know what you are going through, like hopeangel wisely says you will hit your own bottom when you have had enough, I never thought that i would but i did. And thats when you will start to feel better. You'll have good days and bad days, the pity I felt for my alcoholic held me back and still does sometimes.
Make plans for you, keep them to yourself, when he does get drunk again do something nice for you. this is not your fault, and you can not cure it.
Thinking of you
M x