Most Helpful Girl
You need to let her know how you feel tell her everything. If she still thinks you two should be friends then ask why? so, you have a better understanding and try letting her know how much you care and etc. If that still doesn't work then respect her decision and maybe in the future she will think differently.
Most Helpful Guy
You botched the early game stage up.
In other words, you didn't play well your chances, and she distanced herself from you (busyness is totally beyond the point and an excuse).