falling in love with a hookup

i’ve been hooking up with this guy for a couple months now, we started off as friends, then friends with benefits, and now we’re kind of dating even though almost everytime we hang out we just have sex. but when we’re just talking or cuddling, i’m the happiest i’ve been in a really long time, he makes me feel so warm and fuzzy and i never wanna leave his arms. we like the same music and he’s genuinely one of the most interesting people i’ve ever met. he says the same things to me, and so i thought it was a good time to tell him how i feel… a couple days i said i think i’m falling for you, and he told me that he likes me a lot but he doesn’t feel the same, that he “can’t feel the same” but he really wants to feel the same because spending time with me is the best part in his life. i’m so confused. does he just want me for sex?