My ex and I have been broken up for 4 years because they cheated on me and they were abusive. I’ve noticed that they have been talking a lot of trash about me on social media when they already have another partner. Yes, I have blocked them but sometimes even they make a new account to bug me and this has been ongoing for 3 years now. I ignore them and they I don’t light the fire by responding back but they keep coming back with new accounts after I block them when they should be focused on their partner and their own life instead of mine. What should I do because this is coming off as harassment at this point. No matter how much I try to ignore them. Help?