Chris,
don't start thinking like that ('I'm single and worthless'). Not true - you've just had a run of bad luck.
This is the same girl you rode pissed-off about and got hurt, isn't it? It sounds like she isn't right for you. I won't say 'move on' because it's not that easy, and you're right to not want to be friends. Maybe some guys could do it, but I never could either - just hurt to much.
Hang out with your friends and talk to them about it. Don't go on and on about to them (cause they'll hate you after a while), but it helps to have people around and get shit off your chest.. Also, avoid the places she will be at. It's going to take a while to get over it. Nothing you can do about that, but in 6 months or a year you'll look back and think 'how silly'.
Also, stay off the bike for a while. Too much shit running through your head. You need the concentration for the road. Drive around in your car, listen to music. If you aren't already, take a few days off of work, too.
I feel your pain. Been there done that. Even after being married for 6 years I remember what it was like, and it's not something I want to go through again.