not sure why everyone’s giving overly s/xual advice here lmao, the best thing to do is directly say ‘hey i don’t like it when you do this’ and if he gets overly defensive about that that’s his problem. communication is key in relationships and you have a right to set boundaries, it’s not good for either of you if you’re not honest about this. also if he ignores you in favour of p/rn that’s not a sign you need to do better it’s a sign he doesn’t respect you ngl, i’d also mention that if it makes you uncomfortable