Heartbroken

We are married for 14 years and we dated for 5 years prior. My husband recently confessed to me that he had a one night stand during the year before we were married. We were engaged at that point, it that counts. Anyway, He also told me that he was confused about a co worker now that he works with. He has confided in her things that he has never before told me until now. He said he felt as if he could not talk to me. This all happened 6 months ago. I am still hurt and confused. I thought we had a fairytale marriage. I was/am so naive. Since finding all of this out 6 months ago. I have been a wreck. I have also caught him looking at porn on the internet. He says it's nothing and that all men do it. I just feel like he's cheating on me all over again. How do i talk to him about this? I tell him i don't like him watching the porn. He told me that he was going to watch it and that he would hide it from me because of how it makes me feel. He said the only way to keep him from it would be to have the internet shut off. Why can't he just choose not to watch it since he knows that it is affecting our relationship? Please someone comment....