I don't know what "moved on" really means to others. To me, if you are fuming in resentment, you haven't really moved on. You have put a person in a niche, labeled them, and you aren't open to the idea that people can change (but it doesn't come easy).
And that..., I think, is setting yourself up for a rebound relationship as you carry the weight of that baggage on into the next relationship. Not saying that always happens, but it does happen often.
That's why I prefer to say "letting go". I just let go, and I suppose if things had not changed, then I would have started a new relationship eventually. Maybe, then, you could have called that "moving on"?
M-47,W-40,No kids D-filed 5/27/2010 Piecing - 10/21/2010 -=Soon to be banned=-