Glad to hear you had a productive weekend. But, I am worried about one thing. You seem to still be very focused on the A. As much as it hurts and as much as you want your W to never see the OM again, you cannot be involved.
It's great your W has been able to admit much of what has happened. That said, if you know it was a PA, there is really no reason for you to discuss things further. Tell her that you understand how things happened and that you forgive her. Then encourage her to forgive herself. After that, you should not discuss the OM anymore. If she brings it up, you can validate and gently change the subject. I must say when I stopped talking about the OW#2 my H and I were able to get much closer. Mentioning the A is only bound to make your W feel guilty and place barriers in the way of repairing your M.
Remember, your W is not on the same page as you. You've spent months looking at what went wrong, understanding your role in the breakdown of your M and learning how to be the kind of man who knows that before you can make others happy you must please yourself first. Give her some time to catch up and go through some of the emotions.
Other than that, I'm glad to hear you've finally started to turn the corner.