Is this guy genuinely a weirdo or am I overreacting

Yesterday night I got a req from a fairly normal looking dude, he gave me a bit of a weird feeling, but all in all he seemed cool so I ignored it. He started IMing me, which is chill, I like having conversations with strangers, but he did keep giving little hints he might've been trying to flirt with me lol.

I didn't really care, I assumed he was probably some socially awkward guy around my age, who just doesn't know how to approach attractive ppl online. It was nothing too graphic either, just small things like calling me cute, complimenting me, and hyping me up to a degree that the intentions were a bit obvious lol
I thought nothing of it, we talked a lot actually, and I was having a pretty good time until he dropped some interesting info... He mentioned his experience being in college during the pandemic... As in, most likely he was a young adult in the year 2020. Maybe he meant the later half of the pandemic, but the way he said it rlly sounded like it HIT when he started college and I was like... so you're like 24 and hitting on an 18yo...? He's also mentioned being graduated with college by now, which I thought maybe meant he was like 2 years older than me? But it's sounding like it's closer to ≈5 years of an age gap at least which is just kinda...

Some people won't see this as that big of a deal, but it kinda felt like he was infantilizing and fetishizing me a little for being a feminine boygirl and it just felt off </3
He also got rlly clingy and possessive saying I was "his" and suddenly going "im sorry" after I forgot to respond for 30 minutes. Like dude we JUST met... This insecure partner behavior, and I am not ur partner... I feel kinda bad for blocking him cause we were genuinely having a good conversation, but the red flags were popping man I can't risk it

I think I was onto something though, because on his page he seemed to have intentionally hidden his friends list. I had a theory it was because it was full of pretty young women, which would be pretty damning evidence that this guy was an edater. I found a way to view it by using his user ID and plugging it into the link and lo and behold... it was a huge majority of of pretty young women