I've pretty much kept my mouth zipped when my W talks about the OM, I let her do all the talking about him. Just like your sitch, it is technically an affair, something I accept--and don't love her any less for--but I have no idea how she is handling in her own mind. I know that should she decide to recommit to our marriage, it will be something we will have to face, but I will trust her to handle it well.
It sounds like your W is really coming around to you. I am very happy for you. Remember to keep up your great work, it sounds like she REALLY appreciates it, and she will need your support throughout this.
BTW, I would second Livnlearn's motion to stick with one thread, it will help all of us keep up with your developments.