Hi Shellie,
As I was reading your post, I thought a lot about a website that I’ve turned to in trying to recover from my breakup. It’s called Baggage Reclaim, and this particular post might help you out:

Boomerang Relationships & The Yo-Yo Girl

There are a lot of good posts on that site if that particular one doesn’t exactly fit your situation.

You sound like you have a good head on your shoulders and won’t let these guys interfere too much in your life, so try not to let them occupy too much of your thoughts.