idk what to do😩

So my fiancé has this problem, and I know in ways this is suppose to be natural but I'm completely not ok with my fiancé wanting to watch porn all the time for pleasure and I just don't know what to do he gets upset and try's to prove his point but I can't look past it, it really hurts my feelings and although it does he just doesn't seem to want to budge and change. What should I do ladies? I just can't deal with it.