Your mistake was calling her. Since she knows she can have you she doesn't want you. Hot girls can't stand being ignored. If you treat them like they are boring/don't matter they will pursue you. My trick was finding some non-chalant way to give a girl my number while still making her thing I couldn't care less if I ever saw her again.
It doesn't sound like it will work, but I guarantee that it does. I'm now married and when I first met my wife (who is very hot) she asked me to dance because she was intrigued by the fact that I seemed to be ignoring her and everyone else.