Am I wrong? Dealing with In Laws

So my child father and I recently got back together after a terrible break up. See he was an abusive person verbally. I was mistreated and disrespected multiple times. I can be selfish sometimes but one thing I won’t do is do something I am not ready to do or won’t do. Before our break up he wanted to have a 3 sum. That’s before our daughter. I was not ready for any of that. He took that as a no and started treating me unfairly. When I got pregnant he was never there and was seeing someone else. I found out after giving birth and he wanted me to be in a poly. I declined and he just went cold. There was no help for a while from him. He would compare me to the female, call me ugly, fat, broke so on. That part of our relationship ended because he put his hands on me and I called the cops. We recently are trying to see if things can be fixed because we both need help with work and providing for our child. But he wants me to apologize to his mother for calling the cops on him. ( long story short he had lost his older brother by the cops) his mother called me while I was with the police and told me not to call the cops on her son. I made it clear to her that her son put hands on me and it’s on recording. He even slapped my best friend’s phone from her hands. The cops were already at the side of the street and saw. He saw them and left before they could come over. So now she has some type of animosity against me. I get it you lost one of your son to them and I was there supporting them through it all. I was treated like shit by my child’s father because I was being too helpful. but I needed to protect myself from him. Am I wrong for not pulling her to the side and apologize for calling the cops? Cause right now I’m second thinking even trying to have a relationship with him again!!!