I'm sorry you're dealing w/this but you sound good. What you write reminds me so much of xw when she moved out. When she first moved out it seemed she was more angry than while at home. This went on for months. Anything I said/wrote to her was twisted sometimes to the point of very little or even no truth. Especially when talking with her attorney. I'm not sure what stopped her anger, breakup w/om, me getting recommended custody, or son's health scare because all that happened w/in a couple weeks but that is when she finally stopped spewing her hatred towards me. You're handling his madness very well. Hopefully his anger will burn out soon since you aren't letting him pull any strings.
I hope you're finding the peace and sanity that you deserve.