I’d like to ad that I also had to live in the same house for a few years before I could move out. It was hell. Oh , there will be lies and slander for sure but that could be the least of your problems. Try not to be in the house as much as possible when he’s there. I had nowhere to go. No work , no friends , no family. It’s hard not to talk to somebody you slept with in the same bed with for years. I tried and it always turned into an argument. The emotional toll it took on me was beyond description. I pray you can find a way out.