I dont want her in my life

This story is pretty long. Ever since I was little my half sister has always been over dtamatic. For some reason my mom trusted her with some stuff but my sister is a backstabbed. Anyway in 2015 o was getting married and she went timbro a stage of gate towards my mom. So my mom would tell me all the things she would do to her. My wedding was not getting the importance it deserved because every day my mom was like your sister did this to me tour sister did that to me. It was alway about them. Okay whatever I was about to graduate the university , I had my wedding on to top and I had to deal with there drama. A month before my wedding they got into this huge fight where my sister hit my mom I was there so I defended my mom and hit her too. She called the cops on us and what not. I almost got arrested. Ever since she hasn’t been in my life I’ve been happy. No more drama. Well now her dad died and she came back and my mom forgave her but I don’t want anything to do with her. She can live her life and I don’t wish her anything bad I just don’t want her in my life. My mom doesn’t seem to understand and she always tells me. You never loved her you love other people but you cannot love your sister. She tries to force it. She wants my baby to be around her and doesn’t research I don’t want my baby to be around her. Please so rude comments no one is perdect