Story time

I have issues answering unknown phone calls. Why? Because I was talking to. (Not romantically) this guy. I'll call him A. A was cool and we were friendly messaging a bit.
A said he wanted to see a pic of me. I hate sending pictures of myself so I ignored A and started to talking to other guys. A
made a new account and messaged me. I'll call A's fake account S. So A messaged me as S. Naturally I replied to S because well 90 of other guys were sending me dick pics ,telling me that they wanted to cum on my face, and trying to hook up. So appealing right? So when S came at me like a normal human being. I responded to him. So after a bit of messaging between me and S. S
started accusing me of cheating on his friend(A) calling me a slut and how I was disgusting, i was ugly, ect. So I was defending myself and told S I had no idea who he was talking about. S told me he was talking about A. Eventually A revealed that he was actually S the entire time. After going back and forth with him. I told him I was going to leave him alone. Then A told me he was going to find me, and slander my name, kill me and all this crazy shit. I deleted the app. And unfortunately I had given that psycho my number when he was acting normal. I blocked his number and so he messaged me on another phone number pretending to be yet ANOTHER "friend" so I blocked that number. Now I have to admit i was freaked out and was so happy I lied about my actual name. Anyway Everytime someone calls me. I think it is him. And it's funny cuz that's not the first time I've dealt with a crazy guy like him.