My [28F] fiance [29M] wants his parents to move in with us after our wedding against my wishes. We have dated for 4 years and he became my fiance after 2. He truly is wonderful and sweet to me. Same can't be said about his parents. His mother has been verbally abusive to me and his father is drunk and abusive. He would grab my breast, slap me if I resist, and I nearly died when he drove me and my fiance somewhere after a car crash. My fiance did briefly cut all contact but he then told me he wanted to reestablish his relationship with them. I told them if he were to do this, at least don't force me into a relationship with them. He agreed until a bombshell last week. I recently inherited a large fortune from my father after he unfortunately passed away from cancer 2 months ago. I've decided to not spend much on it and use it more as a last resort. My fiance told me last week that we should have the parents move in with us and i take care of them using the fortune. I explained over and over how disrespectful they are to me but he insisted they have changed as people. He refused to hear my side and has now resorted to shouting at me. How do I get him to understand that him moving his parents in with us isn't an option?