Oh, nice to see another Sephardi around and welcome to the CR, ursketching.
I really feel for you. I wonder if MILs realize the hurt they inflict, when they do these kind of things. It must be very hard on you. Just remember to do you part and try to be as respectful to her as much as you can under very extremely trying circumstances. That is all Hashem can expect from us, to do the right thing. I hope I can treat any of my future DILs with kindness and hope that the feelings will be mutual and loving.