DDC, I'm not in the fortunate place you now find yourself in. I've still to go through the unfortunate place you have already passed through. However one thing strikes me as similar in our sitches.
Other much wiser DBers have told me that despite being 16 months down the line I am still focusing on my H too much and that I should focus only on me. From your posts I see you doing exactly the same. Believe me I can understand why but you need to follow the advice I have been given and try to just focus on you and your D.
Give yourself a challege to only interact with your XW when she does the initiating. See if that makes things any better for you.
Me 43 XH 45 M 2.7.88 Divorce 7.10.09 Kids D20,S17 & D15