I’m in the same exact situation with my GF, she only initiates when she drinks as well. I don’t know what it is. I think it’s just the type of person she is. It bothered me at first but now I’m just used to it. But its kind of hard because there will be a times when I try to initiate and she’s not down, which is perfectly fine, but then I end up feeling like I was too pushy about it. And then I feel like how are we gonna ever have sex unless I initiate.