If you don't have an assertive personality and she does, I can tell you right now, speaking from the other side, that even if it did come to you two hooking up, that could be a really large issue. Both my ex and current (possibly soon-to-be-ex) have passive personalities, while I'm assertive, aggressive and spastic. It's a nightmare.
Crushes, limerence, and need for acceptance are all blinders to reality when it comes to pursuing people. Keep your priorities in check and never compromise your own needs, until you're with someone and working for love. Love is about giving with understanding, not receiving fully, which is important to understand.