To me, the main issue is respect. I am not particularly interested in porn, but hold no judgements towards those who are (save illegal, naturally). If his consumption is such that he's hiding it of course that is a HUGE issue. Points to addiction, as secrecy does in most habits. Can he acknowledge that he cannot stop? Or that you mean more to him than this "hobby"? No, you should absolutely not compromise your comfort. Clearly, porn is part of his life. If he were to respect certain boundaries would you accept this? And I do not like the pressure of performance that this puts on you. How do you feel about yourself?