I really like him though. I just don’t know what to do

I’ve been with this guys for about a month now. We went to prom together. I didn’t really like him at prom, but even before then we hooked up over spring break. I really like him and he likes me too but he doesn’t like relationships and I don’t want to waste my time on something if it doesn’t go anywhere. There’s this girl that he used to talk to but never did anything with who constantly texts him, and I joke about her and then I get all jealous cause she’s so perfect and then there’s me. What do I do?
