Validation? LOL, man you are so insecure its not even funny. If you can't get over this control thing of yours, you will never be able to have a stable partnership.
At least some of your exes are going to find wonderful men who probably ARE better partners. For them. Learn to shrug more about such things. You seem like a pissant, wishing unhappiness on others. That attitude will backfire, possibly by turning off a great girl who will judge you on how you treat your exes.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh