Boy help

Hi! I just moved to college and got tinder out of curiosity. I met a few people and went out. But there is this one guy that I’ve been hanging out with for a while. I’m a freshman, he’s a sophomore. We’ve fucked multiple times. He’s said before that we were exclusive and that I was the only girl he’s been hanging out with. I really do like this guy and I can tell he really likes me. But the one issue I have is that he is still active on tinder. We’ve been seeing each other for 2 months and I’ve stayed the night a few times. His roommates love me. Is it weird to overthink this? Do you think he’s looking for someone else while being with me? Idk drop your thoughts. I need help 😂