Porn in a serious relationship?

Raquel
One of the reason why I do exercise a lot is to look at least as good as 'porn girls'. I'm not quite sure how they look like, I just don't watch those things. My boyfriend is trying to stop watching those things. Culturally, porn doesn't make sense to me and if my boyfriend watches that I honestly feel that I've been cheated. Am I the only one? Even if I was... This is not ok for me, what should I do?