While I can't speak for him, I can say a few things. One being that while it hurts you, have you ever taken a minute to reflect on how vilifying him for watching porn/having a porn addiction affects him? I have an addiction myself, and I know (or at least have a strong inkling) that if I told any of my friends or family, they'd do so (vilify) to me. Granted, I'm lucky enough to have a family that would get over it pretty soon, but still. He may not want to admit he has a problem--he may not even think he has one, as some have said above--if all you do is crucify him for it. A feeling of understanding coming from someone you care about makes changing that much easier and, in fact, motivates one to do so. Secondly, watching porn is definitely not among some of the worse things a human being can do. Also, if you consider porn to be immoral or loathsome-- and I don't mean this as a personal jab--I think there are a lot of people who'd say the same about a 17 year old girl getting with a 22 year old man. That aside, both of you need to understand each other: you need to not make him feel like a walking piece of trash and he needs to understand that his watching porn instead of paying attention to you hurts you.