To answer you for real, stop chasing her but remain friends. Seek female advice from her and invite her and a couple of friends out for a get together aka lunch out on the town as a group. Show her the real you and don't be a dick. Treat her better than you would treat your mom and she will either come seek you or lose out on a good thing.
One thing I can say is show her respect and it goes a long way.
LawnDart