Pls help me

My boyfriend loves to watch porn. Personally i don’t think it’s cheating but it does make me uncomfortable knowing that he watches it. I have tried communicating with him about this and he always finds a way to shut me down and make me feel invalidated. I even tried compromising with him and told him to let me know whenever we watches or wishes to watch it. but it still bothers me and i know if i continue to tell him about it he would get mad at me. Am i in the wrong for feeling like this? What should i do?