Good post cat - as others have pointed out, as long as there is any emotion involved there are feelings involved, whether we decide to acknowledge them fully or not. We aren't 'over' them until we feel nothing, not even anger.
We may have decided that they aren't good for us, and even that we don't like them very much and what they have done. But the decision to end something is seldom an administrative convenience. In fact the very fact that it has to be a 'decision' tells us something.
I get the impression that you are still carrying a lot of feeling for your stbx and are torn between him and new guy, who at this point has the advantage of newness. And hasn't hurt you a lot. Cat gave good advice, as have all the other posters [including the tutu wearing guy LOL]
Most decisions can be reversed, life is a long game, which most people play for short term goals and happiness. It is getting the balance right and seeing beyond the present without putting your life on hold. It is a very tough choice you face.
