help!

I got a little tipsy and madeout with my brothers best friend and then had to explain to him i only want to be friends. but then i kept thinking about it and it made me really horny. so the next time that i saw him we watched a movie together and were holding hands then we were cuddling. and then he started rubbing my tummy and it lead to him grinding on me and him feeling me up. and we full on made out and dry humped. and i gave him a blow job and he ate me out. then we were cuddling after and i told him about my depression and anxiety and that I'm Bi. but now after the sexual tension broke and we pla yed aeound i don't feel attracted to him but he is still try ing to get with me...what am i supposed to do? i told him it was just for fun and that i only did it to try it out (cos it was my first time