A guy that ghosted me after sex keeps sending me friend requests after I delete them everytime?

So last year I hooked up with a guy that had tried to hook up with me for a long time. I was in a relationship when he first started texting me so obviously I said no to his advances. But when my relationship ended, I decided to try to talk to this guy. Well, we ended up sending each other nudes and we decided to "hook up." Well, we ended up hanging out and he ate me out, I blew him, and we had sex. He only lasted a few seconds when I had sex with him and I was not judgmental or angry, we ended the night on good terms, and he left pretty soon after. I texted him the next day and he ghosted me. Obviously that stung a bit. Never heard from him until a month or two later, because i confronted him through text. He apologized and said that he'd just been having issues in his personal life and we left it at that. I unfriended him and never talked to him again. Since then, he's sent me a friend request almost every month and I just keep deleting them and not acknowledging it. So, if he disliked sex with me so much that he ghosted me, why does he keep trying to get a hold of me on social media? It was very hurtful and I felt so disrespected and ugly after he ghosted me like that after what we did. I just don't know why he's still sending me friend requests on social media? We had sex last summer and I've gotten like 6 six friend requests from him that I just keep deleting. I got another one tonight that I just deleted. Wtf?
A guy that ghosted me after sex keeps sending me friend requests after I delete them everytime?
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