Sorry you are going though this. I had a similar situation when I first married my hubs. His father lived next door and he was constantly belittling me. He tried to break us up. Always coming in the house without knocking. He
threatened me numerous times. However, it didn't work. He was controlling. Within in year his son sold his house. We moved. Best decision ever. The sad part was: he did himself in. He couldn't handle not having anyone to control. (At least that's hubby analogy.)
I guess the moral of my story. It won't last forever. It would end if someone would put her in check.
Off to work mixers! Have a great day!