About a year ago I was at my friend's birthday party and I think (although I'm unsure) I kissed my (female) friend. I know she was drunk, although I can't remember how drunk I was. For some reason I've only now remembered and it's really bothering me. One, I can't remember if I did or whether it just passed through my mind. Two, I know I was drinking, but I don't know how drunk I actually was. I know it wasn't a massive kiss or anything, but it was still a kiss. I don't have feelings for her, I know that much. Was it just a stupid impulsive thing brought on by the drink? Or does this mean more?