Help ?!

Hello 👋 I wanted some advice on how to deal with my baby’s dad. I have not been with him going on 6 years because he was abusive. Since he can’t abuse me physically anymore he is verbally and emotionally abusive. One minute he is begging for me back and saying I ruined his life and my child’s for leaving him and the next he is arguing with me about any and every decision I have to make without any solutions just arguments. I am emotionally exhausted. I can’t take it any more. This is really ruining my life and he makes everything so difficult since I am doing well without him. Is there anything I can do to limit communication or not have to deal with him anymore? Something anything is appreciated. Thanks. For my sanity I need help.