boyfriend/porn

is it normal to feel like your cheating on your boyfriend when you watch porn. like i don’t want him to watch it anymore. because i know he does, and it makes me feel like he’s cheating on me. am i being too selfish? i’m not ready for sex yet or anything, or for him to do sexual things to my private parts but i just don’t want him watching porn. how would i tell this to him, or should i at all? i haven’t watched anything porn at all and it’s been a couple months. every time i try i hate it and i just feel like i’m going against him. it’s like all i want for him to do is think about me and not anyone else online. it grosses me out that someone else would turn him on or something. and i’m only 16 and we’ve never talked about like sex with each other becuse it’s just a weird topic especially at this age sometimes.

i have been pondering this for a week and idk if i should ask him to stop or just leave it be.