:/ Oh the irony. What you need to do is find a girl who has been only been out with jerks and show her a bit of kindness.
Also sometimes feelings for friends can change over night.
Its amazing what a few alcoholic drinks can do... can certainly change situations.
What I am trying to say is, eventually girls will look for blokes with personality. But when you're young and carefree they go for blokes who look like super models and after getting used and abused a few times they'll eventually go doh X doesn't treat me like that! da dar! Marriage and kids.
At least thats what happens in the movies.