Noooooooooooooooo! Don't ask her again! Just wait for her to contact you, you have made your feelings towards her pretty clear, she could very well just be playing hard to get, I don't know, I can't speak for her or explain her actions! However, I urge you to drop it, in fact maybe you should become quite aloof and distant, she will probably start wondering why you aren't interested anymore and start chasing you instead!
[SIGPIC][/SIGPIC]
Love is like a merry-go-round: you get all dizzy, and then you feel sick!