okay, i don't want to be negative, but this girl sounds a lot like me - i did the exact same thing to a guy i wasn't interested in. every time he asked me out, i kept telling him i was busy.
but then again, i'd like to think this girl is different. if i were you, i'd try really hard to find out FOR SURE if she's really interested in you and if she really is just busy, and not "busy."
how in the world can someone be so busy though?! :blink: ooh - idea! what kind of activities are always making her busy? what if you tried to join her on of those activities? but then again, you run the risk of coming off as stalkerish.
anyway, whatever you do, good luck. ^_^