Ascott - I see you are struggling, and I didn't respond to your prior post about forgiveness, but Trust and forgiveness for me kinda went hand in hand because they occurred on some level at the same time....
Trust for me slowly started to return when I saw consistent change in behavior and the ability to deal with shit he normally wouldn't have previously. Every time he did something that was honest, truthful, and open he added to the trust piggy bank. Slowly over the first few years after the A, the piggy bank was getting full.
Of course there was some self healing and change that went on as well, that also added to the trust piggy bank. Now ... Do I blindly trust like I used to? Absolutely not.
Does that bother me? No Freaking way.
The only person I trust comp-licitly is myself. I know that I will always act in my best interest. I also know that as I healed I could spot a lie from 100 yards. For me it has served me well in almost every aspect of my life. When my kids were teens, when a boss was attempting to screw me over, when a friend was not being honest.... I know it now, I usually choose to call it out, or just walk away.
But You need to know that you have self healing that needs to happen, he has healing that has to happen, then at some point you choose to let go of the outcome, and know how you will react if and when the "other shoe falls".
As far as forgiveness goes? Take that shit off the table do not discuss it, and do not make it a point of R. There are many here that R'd and didn't forgive. For me, it was important to be able to forgive at some point, but not an issue for my H. But it happened. It was quiet, and calm, not a big deal, but when we hit about 2 yrs out, there was a new normal, and a peace in our relationship. That's when I realized I had forgiven him. It wasn't any big deal for him, but the ability to forgive gave me a new sense of peace and comfort.