STB EXDH moved out well over a year ago. I have stayed in the house with DC until we get finances sorted. He had ridiculous affair which came to nothing although he says he'd have left anyway. I have no doubt that he really, really dislikes me. Despite having had very little to do with his kids since he left, he's turning into a pompous performative parent with strong views on how I parent.
He is angry in every interaction we have and it's wearing me down, especially when dc and I have adjusted and adapted to all of his ridiculous behaviours.
I want to not care, I know it's his own issues he's projecting, but every time there's conflict i feel really shaken and without being dramatic, quite traumatised. I feel like this will never end and I'll always be susceptible to being harmed by him. Is there a way to protect myself here/ reduce the impact? Any advice gratefully received