Am I A Fool? 😕

When I was 16, a guy messaged me on Facebook. He was 25 at the time. I made him aware that I was only 16 but he was adamant and kept messaging me. He works in a solicitors office which is funny because shouldn’t he know about the law? Anyway.. I continuously blocked him and he’d come back a couple days later with a different account. Me being gullible, I started messaging him back on a regular basis. He would send nudes and he would ask me to do the same so I did. Our conversations would become on and off for about 6/7 years. We started becoming sexual and had phone sex once or twice. I won’t lie, he gave me the impression that he would be really gentle and passionate. Like, he was sweet and would say cute things to me but at the same time, I don’t know if it was genuine now looking back. I haven’t heard from him in about 3 years until a couple weeks ago, I received a friend request from him on Facebook. I ignored it because I didn’t want to go down that route again. A couple days later, he messaged saying ‘Hi 🙂’. Again, I ignored.. I’m kinda proud of myself 😂 What’s bothering me is that I often think about him. Even when I’m having some ‘me time’ I think about him. A couple months ago I was doing some stalking on IG and I found out that he was in a relationship. So.. Why did he send me a friend request and message me? I don’t know if they’re still together because she switched his account to private. I feel like I’m over it but at the same time, thinking about him is bothering me.