I don’t like him but i’m dating him

I want to cheat and UGH i hate it. i took him to meet my whole family today and he still wouldn’t stop trying to be all “sexy” with me. he has no friends and he tries to pretend he’s too cool for feelings. i want i guy that would watch movies with me and not try to finger me every second. i’m 15 and i know every other 15 year old guy wants that stuff but i’ve said no and he still does it. i like this other guy but i have no chance, and yes i’ve already tried. you might ask why i don’t just break up with him. and i don’t know. i’m scared and not strong enough to end it. so my plan is to slowly ignore him and maybe he’ll break up with me?