I don't know if anyone else feels this, but what would she do without me? She doesn't have a job and could get hurt.
I get that. We've all felt responsible for our alcoholics. The thing is, if you weren't there to save her -- would she maybe have to save herself? That is, however, a generic alcoholic-related statement, and I seriously agree with the posters who suggest that she might need psychiatric evaluation.
You were supposed to be her MAN. Not her CARETAKER and Picking Upper Of The Utter Misery She Creates.