You're calling a papercut a sucking chest wound, bro. Relationships are like this:
get some, get some, get some... go again.
You know how you know you were committed and haven't gone over to the dark side of douchebaggery? You let it hurt you that bad.
It's also a clue to how, no offense, naive you were regarding the relationship game. It didn't work. It rarely does. You keep goin'.
Let your experiences shape who you are in a positive way. It's okay to get down on yourself for a minute. Pity parties have a purpose.
I think you need to broaden your horizons. How are you marketing yourself on these dating sites? Like you are in this thread? Bad idea.
When you're ready to move on? Drop this demure dude posture and don't be afraid to faceplant a few times out there. We are what we do.
Check out this for a good laugh:
Emo Douchebaggery If nothing else, you'll realize that you're not alone but you can't require others to complete you.