How do you react or respond to catching your spouse watching a person of the opposite sex in a sexual way?

I caught my husband viewing provocative videos of other women. This is the second time. The first time, I told him I was uncomfortable with it and considered it as a form of cheating. He hasn’t done it again until today. (Or I haven’t caught him doing it again until today) He has been overly sexual and my desire for sex isn’t as strong as it used to be. I’m thinking because everything he ever talks about is sex or turns into sex…

We have been having issues with boundaries. We’ve been talking through it, but it seems to go around in circles. I feel disconnected. What would your response be to this situation?