My husband views a lot of adult porn and I think it is interfering with our marriage.

My husband likes to view adult porn sites, and enjoy it by himself (if you know what I mean). When it comes time for me to want to be intimate with him, he tells me he has no energy or is tired,etc... Later I wake up only to find him at the computer viewing porn. I feel it's coming between us being an intimate couple and think we need couple counselling or something, am I wrong? What else should I do?