Can I do anything about this?

*I know I’m playing into his games, he just knows how to get to me I guess. 🤦🏻‍♀️

I kept feeling my phone go off at work the other day and I realized it was my ex. He was blowing me up calls and texts. My service must’ve got cut off because it says he sent them as texts and then made a number off TextNow and kept going. I had his original number unblocked because he blocked me at first and I didn’t expect him to unblock me. I just kept saying “okay” to everything and he responded with “kill yourself. To think I let you make me feel that way”. I have no problem admitting my faults but I literally didn’t even do anything to do this dude, at least to the extent of that. He even admitted that he felt like he was abusive at one point, which is what led to us being done. He’s also threatening me, saying that I “have 3 days” to “fix what I did” - because he was telling someone that I was abusive to him and using both of us to manipulate each other, and he showed me where she was calling me toxic bc of lies he made up, so I told her and she cut him off and he doesn’t like it - or he’ll “ruin my life in any little way he can think of”. And even tried to tell me that I “had no choice” but to be stuck with him “because of what I did”. And he talked a bunch of shit and then mentioned how I raise my son versus how he would raise his own. And it made me mad so I said “don’t have any, it’s already bad enough having just you” and he said he was going to kill himself just so that I could go to jail for that.