how do you?

Obviously, he must have gotten the feeling that you just weren't interested in sex anymore. In the past, did he always ask and possibly beg for sex, and was always turned down by you? Do you two only have it when you feel like having it? Does he always make the first move and you never make the first move? Men love sex and are hungry for it all of the time. When women show little or no interest in getting romantic (or maybe only like it once a month), a man will go elsewhere for a visual stimulation.

Take charge and be the dominant one. Ask him to join you in bed. Show up at his side wearing only a robe. Show some true interest in wanting to get close. Ask him to help you shower. If your just going through the motions to make it happen, it will be evident. Be in charge. Do what you want and tell him what you want done to you.

On the other hand, if you are alway the one asking for the intimacy and he is substituting porn for sex, he is an idiot.

All it takes is a single spark to relight the fire. If you can make it happen once and you notice a change, keep it going. Regular intimacy will cure any porn addiction.