Obsessed?

*Long story but need opinions*

So, This guy has been texting me on and off for 4 years. I was 16 when he first messaged me, he was 25. I am now 20 and he’s 29. I remember when I was 16, he sent me sexual messages/videos of himself and even videos of him having sex with other women. I explained that I was 16 and his reply was “Well, it’s not like we’re doing anything bad.” I blocked him on everything. He would continue to make different Snapchat/Facebook profiles just to reach out to me.

Fast forward to now.. It’s been 4 years and he still won’t stop. He claims to “really like me” and “is falling for me”. He is extremely sexual and he does make me feel uncomfortable at times. It’s kinda like he’ll chat about everyday things one minute and the next, he’ll just get sexual. He always calls me ‘Gorgeous’ and ‘Beautiful’.. What I’m trying to say is that he’s very clingy and can’t take no for an answer. I think what makes me feel most uncomfortable is his age and the way he gets all sexual with me. He can be overly nice sometimes.. A bit too much. He wants to buy me things.. I refuse. It’s exhausting because I know if I block him on Snapchat, he’ll probably freak out and try reach out to me again. I don’t understand his personality, it’s odd. I remember the other night he messaged me and said “I checked to see if you deleted me like every 10 minutes.” He always says he “doesn’t want to lose me.” I just feel distressed and feel like I’m being harassed.

What do you guys make of this?