I would suggest you Do go out to disconnect, do not guess or assume anything that concerns his thoughts you just dont know what they are. Finally, I would not initiate r talks.
On these ocassions I always wondered if the S regretted hurting the LBS, getting caught, having an A or a mix of these.
Whatever the reason, my ideals are pretty clear, before any talks drop the OW. Until then not interested. I do not understand how 2 people can discuss anything about an R between them when there are 3 in that R. One of you needs to be out of the equation.