All I can really say is work on yourself and become the best you can be. If she comes back, she does. But what you have to do is do what you can. There is nothing else you can do - or should, for that matter. If she decides to come back, she will. Remember my butterfly analogy?
The unfortunate thing is that by the time they reach this point, its done. Doesn't mean it can't happen, though.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.
