You're not being manly enough. You're probably coming across as insecure and a bit needy, and that girl is just dragging you along for an ego boost instead of having the balls to be honest and say 'I'm just not that into you.'
Putting us on a pedestal is not sexy. Nor is being a pri**, but the thing about pri**s is, they often also demonstrate fundamental masculine qualities along with their p****ness. Qualities such as assertiveness, wit, leadership, status.
In the words of Hitch, 'with no game, and go guile, there's no girl.' Apart from, perhaps, a girl who's settling due to her own issues.