cheater?

I've had an ongoing thing with this guy for almost 5 months at this point. We hook up whenever he's in town and I've driven two hours twice to visit him at his apartment. but sometimes I see him on tinder or logging out of the app when he closes his apps out and I pretend I don't see it but this has made me feel very shitty. We act like a couple but sometimes after he gets what he wants he doesn't talk to me for weeks and then he will pop back up acting like he cares about me. we've never talked about what we were but I just think it's so fucking wrong to talk to multiple people while he wants relationship benefits from me just bc I'm caring. idk what else he has done, but I knew he was in town cuz he posted on his story and I made a fake tinder account and put my settings on his age and distance away he was from me and what do u fucking know, we match!! this just confirms what I was trying to pretend wasn't happening. I feel used like why does he keep hitting me up if he wants to fuck around and act single. I told him I deleted the app after I met him and that there wasn't anyone else, all I wanted was loyalty in return. this was my first guy I've ever dated, I'm 18 he is 23. I feel like just bc Im younger doesn't mean I'm a naive dumbass, I caught you dude. should I delete his contact and block him on social media? I don't really know how to cope at the moment, I'm just more furious than I am crushed, I really want to get even. What's also is upsetting is he pressured me to some things I wasn't 100% ready to do yet which is a red flag but I just kept being ignorant. do I even have the right to be mad if it wasn't official yet? I feel so gross