Where are all the nice men nowadays!!?

Idk, it just seems that the only guys I seem to attract are complete players! They say they really like you, insinuate so much BULLSHIT, and then just move on to the next girl once they get what they want. All my friends seem to be able to find these nice guys, but I just find it impossible! Should I change the way I act or something? It's not like I'm overly confident and promiscuous - in fact quite the opposite. So why do I keep attracting guys that are? :S