I'd like to think that her alcoholism is less about the fact that she's gay--because that would put it in a real negative light--and more about the general hopelessness of the situation as a whole. It's a dire fucking situation, and not everyone has the coping mechanisms to be able to maintain. It's entirely possible that she's always had the problem. We can't rule out the fact that alcoholism is genetic. It's possible that one of her parents was, which would make her genetically predisposed to the disease. I see where you're going with this, but it's such a dark road, I just can't go any further with you. Sorry, mate.
Bookmarks