What we are doing now (W living in the house, me paying all the bills, 30/70 timeshare with the kids) is basically what we agreed to at the start of S. We negotiated these items in "MC" (you know my feelings on what happened in MC). Outside of MC, we have been unable to come to agreements and hold each other accountable. "I'm not okay with that" is the stock answer from W.
I stopped going to MC in December because it was "child safety class" every time we went. It would have been the one forum to make incremental changes.
I haven't been entirely mute asking for changes. When I do assert myself, she tends to raise her "concerns" and shut down the conversation. Again, "I'm not okay with that" and then her own reasoning for what she thinks is best.
So the question is how can I get changes to the 3 major items: custody/timeshare, finances, and the house.
I have mediation. That is one forum, and I am trying. I am also proceeding with L advice, as mediation to date has not been very productive.