Strange,
I don't know your whole sitch...I'll have to read up on it.
But you have to do what you want to do. If you really want to get back together someday then you have to hang on. I would not file the D papers. I don't know how that would help anything. Go on with your life and concentrate on improving you. I think there are other ways to show her that you are not going to go on like this forever. Get out and have fun, see other people if thats what you want.
I hope this helps!
Matt