help me OOT: I like my friend's gf and don't know how to deal with it

[foobar37]

I met this guy a while back and became really good friends with him. I eventually became friends with his gf as well (they were already dating when I first met him). Through circumstances beyond my control, I ended up spending a decent chunk of time alone with the girl (obviously a mistake), and she confided some things in me, including problems she was having with her guy. At one point I thought there was a very good chance they would break up, and I realized I wanted to ask her out if they did so (I don't care that it's against the rules). They ended up staying together, but I was stuck with the knowledge that I liked her (I had somehow lied to myself about it until then).

I don't know why exactly, but I told the guy about my feelings (I'd like to believe it's because I'm a loyal friend, but I don't know if that's true). He then told the girl, despite my asking him not to. So now all three of us know, and it's super awkward. WTF do I do? Be a man and deal with it, remaining friends with both of them? Stay away from both of them and move on with my life? Still be friends with the guy but stay away from the girl?

Sorry, no pics because too many people who know us read 2+2 (but none of them know my nick).