This has been bugging me all day! What does this mean?

Well, it sounds like he wants you back, too, but that could be good or bad. Did you break up with him or the other way around? Think about the relationship you had - EVERYTHING - good, bad, and ugly, and try to decide if it's something worth going back to. If he was a jerk you can bet after a month or so he'll be the same frigger that you left the first time. Anyway, good luck to you. And don't miss out on other possible relationships for someone you aren't totally sure you'll end up with anyway!