I think you have to look at the actions your H is doing and not any words or attitude. For my sitch, once we had the mediation and everything was out there that would be done in the separation it seemed to relax the situation since there was no unknown out there any longer. I think that helped W to focus on something else and it appears that is our relationship. Also, I think that in my sitch since everything was coming to an end really fast W had to suddenly really think about what she was doing. I had stopped all pursuit and was on board for the separation. I had totally stopped focusing on her and just focused on myself and D3. When she was around I would be nice and cordial to her but I would just be playing and laughing with D3. I think that shift in my attitude and behavior made her see me in a different light. Every sitch is different though. I think your H probably has relaxed around you because things around being separated are resolved in a way. That can free him up to think about different things and be more open to the people around him. He doesn't have to focus on that anymore. It could be a good thing. It could also be a rollercoaster ride ready to take off so be prepared for that.
Burt, Thanks! I just hope she keeps going with this train of thought and we can get into MC and have her really embrace it and open up this time as opposed to 6 months ago when she would just shut down in counseling. Fingers crossed.