Wow! I mean i feel sorry for the ow, she will forever be looking over her shoulder!
Its admirable that you and mil have managed to keep your relationship. I would very much like that, and as the boys live with me and have done for the past 5 months nearly since H decided we are done, the only time she gets to see them over FaceTime is when i ring her.
Our relationship doesn't need to revolve around her son anyway! We get on really well and we dont even have to speak about him.
I have been thinking a lot recently and whilst i dont like the person my H is at the moment and i know and feel that my life is continuing without him. Im also committed to my marriage whilst we are still married.