I'm sorry if I was insensitive on a sore spot for you.
I'm quite sure that one of my H's issues with me is that I never believed him when he pointed out the things I did well, either. Partly because I was so aware of the ways in which he disagreed with my parenting. Partly because I felt very strongly that he didn't understand me. If he had ever validated my concerns and then followed up with some version of "have you thought of any constructive ways you might handle that?" or "is there one particular thing you can make better now?" I would have felt a lot more validated and empowered. (that second question I wouldn't probably recommend to you, because she knows there's subtext about OM there. But maybe down the road...)
You are in a horrible spot, and I'm so sorry for all of it. Your kids are lucky to have you. It is really tough to feel the weight of that, especially when it seems so needless. I wish you & your family all the best.
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15