Pics/Porn - 'I'm at my wits end, where I feel that I'm obviously not enough for him"

I've been married 1 1/2yrs, together 6yrs. We had a long distance for most of our relationship. When we dated, he would look at sexy pictures of other women and/or porn when I was not present. At first, it wasn't an issue because this is what he did for 10yrs before I came into picture(he didn't date for 10yrs). When we would see each other, he didn't have the need for the pics. We also took tasteful, sexy pics of me for him to enjoy when I'm gone.
As we got closer to our wedding, we had spoken about it, and he stated he had no need for it anymore since we are getting married and moving in together. Since I've been married, he has gone behind my back four times and needed to look at other woman on internet to get him off. We've never had a sexual problem, for someone to try to justify this.
He went to a counseling session once after the third time and he realized it was a form of cheating, but still did it again. Asked him to go to counseling with me and he told me that he didn't need someone else to tell him what he is doing wrong. I had to beg him, if he's not listening to my feelings or to himself, he needs help. He finally agreed this week.
I'm at my wits end, where I feel that I'm obviously not enough for him to come to me or at least look for my pictures when I'm not present.
What am I to do?