KeenanHG,
All that i can say is that i think that she doesn't really love u that much. Have u met her before? Maybe she thinks long distance relationship wouldn't last long and she doesn't want to waste anymore time on this relationships OR there's someone new in her heart. I don't think what happened can be an excuse for her to cut off this relationship unless she really wants to.
But u can do one thing if u really wans to keep this relationship going on. Just keep on doing what u r doing now n maybe someday she will know that u r the one for her! Good luck to u in this relationship n I can ASSURE u that true love really takes time!
LOVE is sad when u have it but LOVE is sadder when you don't have it