You know, I never really have too much to rant about exes - I have impeccable taste and I date pretty good guys!  Of course, their not the smartest if they leave me, but someday they'll realize that I was the best thing to ever happen to them and they'll never find another girlfriend as good as me!  Ha ha...  
No, really, I would never say that to them - but they have regretted it and crawled back before...