I, too, am incapable of making the first move, but it is because I'm afraid of rejection. (You and I would sit around and stare at each other all day, it'd be pretty funny.) Taking that pathetically further, I've ruined more than one relationship because I was unable to accept that someone would actually find me attractive and want to be with me.

It's good that you maybe probably didn't get your heart broken, because hopefully that means you can continue your friendship with Kathryn? That regular old run-over-by-a-truck pain hurts plenty, though. If it helps, even I, the girl who cannot fathom anybody liking her, would have drawn the same conclusions you did in that situation, 'cause it really does sound like she was a bit all over you. Sucks. :(