(LONG paragraph-story): ex-boyfriend harassing me on steam and calls me a cheater despite the fact we broke up b4 i even got into a new relationship

so to explain: yes, i have blocked my ex after all this happened, but in the beginning (as we know from my older posts), my ex blocked ME first. i was fine being friends but he decided to be rude, call me names, and then blocked me. I was fine with this because prior to that, we had broken up for nearly a WEEK. Yeah, a whole ass week, which means both of us were single by this time, so I took care of myself and then got my lovely boyfriend a bit later on. now, a little extra storytime i think, but this isn't the first time I had broken up with my ex. We broke up the first time back in like... May-June, I think maybe early July even, because he just wasn't changing and kept blaming me for stuff HE did. I had gotten with my best friend (who had stated he was 18 and i'd seen him in 18+ channels on a server we share, so my natural assumption was he was turning 19 this year), and after like literally a day or two, I had a horrible gut feeling abt it and I asked his age and he admitted he lied abt it and was 17. I immediately dropped it (as i'm 19, i turn 20 next year), and we're still on very good terms, but we mutually agreed we weren't gonna date. This is important because it comes up later. Now, the second time has been the most recent one. I broke up with my ex the second and last time in mid-to-late August of this year because him refusing to do smth that was very toxic was my last straw (again, he was hanging out with that girl that made me uncomfortable), so I ended things and moved on. He begged me to be friends and I said fine, but then he treated me like genuine dogshit and was rubbing in all my trauma in my face. After I gave him basically no reaction, he blocked me and I was officially free from him. Yesterday evening, I was on call with my boyfriend and we were having fun, and I decided I was gonna gift him a game on Steam. I then notice my Steam chats had about 15 messages... from my ex. I read through them and there was 1 text begging me to reply back and like 14 more of him cussing me out and accused me of cheating on him because "my friend told me you did". He also was trying to make me look like a creep, when I'd told my friend the ENTIRE story on it, and he has the AUDACITY to call ME the manipulative one!? How stupid is that omg, we weren't even TOGETHER when i dated my new bf, he's genuinely sick in the head. And to top it all off, my ex blamed me for the SA, saying "it was your choice, you could've said no". Yes, you heard that right, he genuinely was blaming me for my own trauma, despite him being the person who did that to me. I blocked him and sent one last very angry voice message to his shitty friend and blocked them too. I left all the group-chats we shared, and I banned him from any server we shared. I was very upset and ended up crying on the phone, but thankfully my bf was so sweet and understanding and he comforted me during it. I don't think there will be any more updates regarding this matter, but it is so messed up. Thanks for reading!