Hi Deb- You have such good friends and support here! Please try to take it easy tonight. Believe me, our situations are so similar that I can feel your pain.
Only, just last week I was wishing that my H would open up the way yours has. He probably wants to tell you all the ugly stuff to see if you'll still love him.
I know what it is like to not trust. Here's a funny thing that just happened to me. H is going to the PromiseKeepers conferene at the end of June. He needs to find a hotel. So I was looking at the internet history and the hotels.com website comes up with a search for Phila for a room for 2 adults but the date is the middle of the following week. So I'm getting stressed out and thinking, oh he's going with OW. Well, I logged onto my work computer and went to hotels.com and it automatically pulls 2 adults and those dates into the search. So, I got that sick feeling in the pit of my stomach for no reason. And I had visions of me saying to H- why are you searching for a room for two people?!