Becky,
I responded to your post a week or two back and during that time I had not had your feelings towards my ex until I found out he was taking a trip out of the country with his girlfriend. I became so angry because I wanted to travel out of the country and he refused. I totally understand your feelings of not wanting him back but having some feelings about what is happening now.
I know what you mean about the ex going places and doing stuff with the new wife. WK (my ex) and his current wife (whom I have dubbed The Beast, for her disposition and manner) have gone all manner of places, including long weekends out of state, which WK and I could never afford to do because we had young children and no money, LOL.