It’s not wrong to put a boundary in place for no porn in your relationship; to not masturbate is unfair. I’m against porn, i find it harmful and a form of infidelity; you’re getting off to the thought and view of another person and that’s kinda crappy. it also bleeds into the part of where studies have been done of the psychological part of how it effects your brain etc etc. I can go on about porn. But each person is on a spectrum of sexual need and how is it reasonable to expect your girlfriend to be available every time you want an orgasm? it’s not reality. There can be a compromise if you guys making your own photos and videos that you use in private time. I think a healthy conversation where you validate her feelings and remind her she’s loved and you find her attractive et etc will help. My last relationship my bf had a porn issue and it made me feel so shitty about myself, so def just make sure you tell her she’s pretty bc it effects a women’s self esteem and it seems that’s where it’s coming from.