Believe me I know exactly how you feel and YES there will be peace once you are away from it.
They do like to argue they do like to attempt to suck us back in so guard you rself emotionally as well. You may have to go no contact, change your phone # and if possible don’t give him your new address. Maybe get a post office box and have your mail forwarded to that “in the mean time”.
I left my ex several times and with each time I learned valuable lesions not only about addiction but about myself as well.
This go around in order for me to totally make a clean break and leave all that chaos behind I needed to obtain a restraining order so that he would not harass me via phone or show up where I am currently living. I didn’t do that last time and the emotional pull from him kept me sucked in even thought I was physically out.