She started dating someone else.
I think the moment and chance has done passed you by my friend, and I don't mean to be blunt, but here it is, just move on. If you felt this way, you shouldn't have broke up, no matter how stupid the reason is. When you find someone you really love it will be different. The fact is, now you are getting into an area no one likes to be in, and in this area there is always a lot of drama. So avoid it. Sorry though that it went the way it did. I would also be a little concerned that she can easily date someone else, then give you the opportunity so quickly? Seems a little shifty.
“I was never really insane except upon occasions when my heart was touched.” ― Edgar Allan Poe
Wish for a pile of shit to turn into gold hard enough and guess what? It's still a heaping pile of shit.