Basicly, i organise events etc etc...i've quite recently got it in with alot of girls, and this girl knows it too.
So this girl i met with recently been chatting to her on FB for a while before. Until eventually we met up after my last party and we fucked, then things were good, we kept meeting up here and there. until this weekend, i called her up twice-3 times to see if she was awake, didnt get any response and i knew she read my messages aswell because it says on iphone. Im just curious to know why she hasnt messaged me, as she tends to always messages me etc etc...

oh also i told her to be free this friday because im taking her out....maybe ive been too clingly too soon or something ? not too sure. Help me out please

Just wait it out, there are many reasons why a girl might not text back and they're not all bad. Maybe you came on too strong, maybe she has buyer's remorse. Just try to wait and see, nothing makes it worse than getting angry at their lack of response as frustrating as it undoubtedly is.