My dad was a wonderful man. He never once hit my mom and loved her very much even though she once hit him. He took her arms and held them so she couldn't hit him again. That was the most volatile moment I saw.
I haven't had good relationships. I'm not done trying though cause I know good guys exist they are a rare jewel but they are out there. I now am aware of red flags in my youth I ignored I no longer do that.