Thanks for your support guys, Lady S you have a very good point, although it was me who initiated the 'affair' when she left, he didn't even want to at first, for the exact reason that he thought (quite accurately) it would make things awkward and could affect our friendship. I thought a) I could deal with it if it didn't work out (wrong!) and b) I had a sneaky suspicion it would work out (wrong again!) Yes I am viewing everything through very tinted glasses. I am always quick to accuse people who I think are making judgements based on emotions which only distort an issue that is otherwise pretty clear cut. Not so easy when it's me who's living in the blur.
Anyway, there has been an update: he has told me he doesn't want to sleep with her anymore. He says this is nothing to do with me, but the fact that she's getting too clingy and invasive. I doubt this resolution will last, but that's how it stands right now. And he has been avoiding her, quite literally. Makes things slightly easier for now anyway. Time I think to get in touch with my real feelings, I'm still not going to do anything with him till I see the final outcome of the other situation. And in the meantime I'll go on dates with other guys, not going to let his selfishness stop me enjoying myself, and it will come through in the end if he really cares.
Glatt talking to him now about a relationship doesn't seem a good idea when he's getting stressed about girl B wanting one. Don't you think I should leave it for now until his position becomes clearer?
Otherwise the choc ice cream (preferably Haagen Dazs Belgian Chocolate or Ben & Jerry's Phish Food) sounds like a good a plan as any wolf.
Thanks again for your messages of encouragement