Porn and your marriage (in light of the Ashley Madison hack)

Before my husband and I got married I knew he looked at porn occasionally on the computer. At the time I laughed it off and figured it's just what single guys did. We had a long distance relationship and didn't get to see each other everyday so I figured whatever.

Fast forward 6 months into our marriage and I sit down to our computer. I find all sorts of porn sites in the browser history. I click on stuff, it's nothing too out of the ordinary, but I confronted him and told him it made me a little sad to think I wasn't enough. He felt bad. Swore it off, claimed to never look at it again. But the doubt never left.

Fast forward 5 more years and my husband and I were going through a very rough patch. Finances were tough, work was tough, we generally didn't like each other at the time, so stressed to enjoy life, but still loved each other. We worked it out and kept moving forward. A few days after a major falling out, that doubt came looming over me, much to my own stupidity, I went looking for proof that he was back at it and I found it on a cheater's website. I read his responses to the questions the site asked and was totally mortified at the details to our life he had given including the city we lived in, the fact we had a child, the statement that his wife (me) was not giving him any. I went into a deep depression and secretly started resenting him so badly it physically hurt me to even look at him. I couldn't understand how someone I loved so much could hurt me so badly. I kept the screenshot of his profile and sent it to his phone one day after an especially gut wrenching day. He called me immediately and explained it was from when things were rough and he didn't really intend on cheating on me, but just wanted women to send him pictures. He cried. I forgave him again. The doubt literally never goes away.

He told me last night he is one of the 37 million people who had an account on Ashley Madison. He told me he wanted to be upfront and honest and said he hasn't been on it in a long time. So naturally, today, I'm processing all this and I'm so angry. Do people actually create profiles just to get pictures?? The only sex we have been having lately is strictly for baby making purposes and frankly, if you've been there, it becomes boring and unattached after awhile. I've tried really hard to move on from these pages he was visiting but the doubt is always in my mind and,it's really starting to affect how I look at him. I love him as my child's father, I love him as a best friend, but sex with him is hard because I always feel not good enough and feel like he'd rather be elsewhere..but is afraid he would get caught. Any tips on how I move on from this? I don't necessarily want to divorce him if he's been physically faithful, but I can't help but feel cheated on emotionally.