Guy help pls

So, a few weeks ago it was my best friends 16th party and we were all drinking, I ended up hooking up with a guy that I had slight feelings for before hand. (We didn’t go all the way) but afterwards i ended up falling asleep in his arms etc. after that night he went straight back to how it was before, extremely slow replies, hardly any effort. however i caught even stronger feelings, i literally think about him 24/7. ive tried to tell him how i feel but every time my words aren’t clear and he doesn’t get it because i’m scared. i feel like he just wanted a hook up for my body and that’s all. but i really like him and idk what to do because i’m almost sure he isn’t interested in anything else. please help

UPDATE:

he texted me and he doesn’t feel the same way