Im worried ive lost a friend and i don't know what to do?

Either give it some time, or let it go. You have already apologized and everything; there is not much more you can do. Have you guys tried to talk about what happened that night? Perhaps that could help. Just because you are drunk doesn't mean you can get away with everything and anything, and she's probably thinking that. You can't get orange juice from apples (you know what I mean?).