DH, porn and lack of sex.

Nuriana🎆 • One Ring to rule them all, One Ring to find them, One Ring to bring them all, and in the darkness bind them.
My DH has an addiction to porn and it interferes with our sex life. He will hide upstairs in our room or bathroom to watch porn and masturbate almost daily or even more often. Sex has become maybe once a week to every 2 weeks or longer. I feel he would rather do that than me and I've talked to him about till I'm tired and blue in the face. Any advice would be helpful.