Firstly let me say that I know where your coming from. I split up with my Gf of 4 years about three weeks ago...It hurts I know. Firstly you need to shake the needy attitude. Most women hate needy people so play it cool. Try to be really good friends with her. Take it real slow if she is worth it then its worth taking the time to be friends.
Thats what i am doing, being friends giving her the space she wants. Space is the way to go...I think a few weeks is enough mind, just drop her a text message saying hello and how are things going. DONT try to make out your going out with a model (bad idea!) instead make out your over her and just want to be friends. Take it slow and who knows what the future holds! You should do some thing to take your mind of her...have fun (I know its hard but not impossible!) Your insecurity and needy attitude will drive women away..they do it sub consiously...no bull. Be secure in your self and support your self...earn her trust and affection but only if she is truly worth it dude! dont waste time over a tart that aint worth it! Good luck and all the best!