Piece of A$$ or Friend?!?!

[Hootie]

So a few weeks back I was all giddy about that friend of mine whom I've had feelings for for quite some time. Well I met up with a very good friend in September and she told me the two of them had made out and it was totally weird and whatnot. No biggie. She said she was grossed out by the whole thing, because they too had been friends (not as good of friends and he and I though). So fast forward to this past Saturday night, when me and her are at a bar drinking and she says that she hates his guts and never wants to see him again! I asked her to reveal the details and she wouldn't. The only thing she could assure me of is that she didn't sleep with him. See, after I had talked to her in September, I asked him about it and all he said was, "I feel really bad about what happened. It was weird. Things went too far." That's it.
The only other thing my friend could tell me is that he sweet talked her and that she wouldn't have felt so terrible if he hadn't said all these nice things that led her on and now he blocked her from IM and won't even email her.

So now I'm at a loss. Knowing what I know NOW I'm beginning to question if I'm just a friend or a piece of a$$ he's trying to get?!?! I am talking to my friend on IM and she's explaining how he always joked with her about making out and stuff and I'm telling her how he does the same thing with me.

URG! What should I do?!