I'm in a similar boat so I can't offer much advice. The last guy I dated assumed we'd be moving in together right away! I just decided that I had to remain single from then on until I was ready for a relationship.

My only advice would be to stock up on batteries.

It could be that it's because you're overtly sexual (never hurts when a man is "hunting" ) but I think it's the independance factor, too. A couple of women I know are models and very, very good lookin but they're so high maintenance and clingy that men inevitably run away.