Mahhhty, I follow along but don't have much advice for you. It seems we are in very similar circumstances, about the same age, same timeline, both D'd (yours on my XW b-day).
I don't know about you but I suspect you are having trouble with closure or even understanding what happened in the M. It also seems that you are understanding more since Sandi started the WW thread.
The resentment, disrespect and rebellion were going on with my W too. I remember at one point her telling me out of the blue that she was smoking and I was just going to have to deal with it. I knew she was. When we first started to date she would smoke when she would drive and I hated it. She quit but I guess since we had separated she decided she was in control and started smoking again. It also seemed like every time we got a little closer together she would get nervous and act out or bring up something like the smoking. The funny thing was that around October she quit on her own because she got sick of it, she even had a vaporizer and quit using it to. In my eyes it just seemed childish.
So you are not alone, I too am trying to right my ship and sail into smoother waters. I have been following Sandi's advice on the WW thread and interacting with my XW as minimally as possible.
Hang tough, we will all make it through this.
M:34 XW:34 Together: 10y Living: 9y Married: 7y Son:6 Son:4 Separated: 12/28/13 Piecing: 5/2/14 Separated 2nd: 10/16/14 W filed, but pulled it: 11/5/14 papers served: 1/27/15 D final: 3/6/15