Suave

I suggest you either break it off with her, or break off your friendship with your friend (whichever is more important to you). However, it is your call, and you should go with whatever you feel is the best thing to do. Just because strangers think you're an asshole doesn't mean you personally would feel better doing either thing, and it all comes down to how you feel about it, whether we like it or not.

By the way, I thought we were supposed to refrain from personal attacks. Especially in a sensitive forum like sexuality.