I don't think you "screwed" anything. You can't force a relationship, and it is a waste of time to think about the email you didn't send. Had you sent it and got no reply, would you feel better? How about the email they didn't send? Maybe they are the ones who "screwed"?
"Still what could've been. Is better than what could never be at all" -- Tiffany http://www.youtube.com/watch?v=4LzGss9QGAk