I really REALLY hate to say this... But, the last relationship I had (before the one I just got out of) I ended it with a guy who was wonderful to me and loved me more than anything.. but I changed, my wants had changed, nothing he had done.. I told him the Same thing your girl told you (when I should have told him the truth, I wanted someone else). I had found another "new and exciting" guy and loved him harder than I had loved anyone... then he broke my heart.
What do I want now...
Someone who loves me BACK like the previous relationship I had did.. but guess what.. He is stronger than ever now and has moved on and he knows what he wants.. <--- because of this, he is more attactive to me. You need to do this.
She will think about you again.. but she is infatuated with her new guy. She is not worth your time right now.. and that's because you're obviously not worth her's she says she cares about you.. but must not be as much as she cares about her new relationship.
BE STRONG, And work on yourself, appreciate yourself, and move on.. it WILL make you more desirable.
(I hate that I have done this same thing.. If I could go back I would have told the truth.. )