Is porn cheating?

Anne • Fun loving, free spirited, dreamer. I am open minded and understanding.
Before my husband and I got married I told him that porn in a marriage is toxic. And I would not be understanding if he watched it. If he had a problem with that he should have told me. Instead, he did watch/use porn. He didn't tell me until my best friend came to stay with us and she asked if he had ever watched porn while he and I had been married. He said" I'm not going to lie to you( but he will to his wife) I have watched porn" he told my best friend in front of me in public at dinner. When I was hurt and asked him why he did that, he said he wanted to hurt me. Now, ladies tell me your thought. Is watching porn when you ask them not to qualify as a form of cheating?