I can relate to you on the blending of two families. Both myself and XH have a D from previous marriages. And this has/does cause problems because he and I see child raising very differently. Lately it’s been very hard because he always refers to “his” D and “my” D, instead of our Ds (we’ve been together for five years now!). I wonder if blended families ever do become just families or is there always a line drawn somewhere?
Anyway, I’m rambling. I can relate to so much in that post about your XW. About how she doesn’t seem to have any interest in your kids. How she lets hers decide what happens. I have no advice today, but I just wanted to say (in a very long, round about way!) that I understand how you feel.