I've heard it said that once a girl figures out the guy really likes her, the sport is gone.

thats not 100% true. most women want to be in a serious relationship so if you have been going out for a while it most likely won't happen unless the girl doesn't feel the same way. it is more likely going to be true if you are still in the flirting stages but have only gone out once or twice or haven't gone out at all. because the girl might feel like you are not in it for the right reasons.

it is true...but not consiously. Girls AND guys like the chase more than the conquest sometimes. Keep her guessing.