StillBaffled,
I feel for you. MLC can be very frustrating when they peek out then go back into the tunnel. From what you said it sounds as your H ended it with OW, he was still dealing with his depression and probably withdrawal from the OW. At that time maybe he picked up a vibe, misread what he believe to be what you were feeling, or perhaps you said things out of frustration that lead him to believe that you would never be able to truly forgive him and let it go so rebuilding and healing can begin.
Not saying that is the case, I am saying that at that time it was easier for H to run back to OW then to face the pain and hurt he has caused. Is it fair to the LBS that we have to walk on eggshells, humbles ourselves beyond sanity, tread lightly because our spouse is having a MLC? NO it isn't, but at the same token it is what we the LBS end up doing to some degree to show that forgiveness is within reach, happier times are ahead, and that the marriage can be better than it ever was before.
I feel as LBS that I am eating crow right now, to show my H that I have forgiven him, that I can be and we can be a happy married couple again. I feel I am taking on more of the burden than he is. I also know that I desire to fix the marriage more than he does right now so I have to do more than my fair share to get us there. I throw truth darts when it is necessary but I often hold back more than I want to. I don't say everything that is on my mind, I don't share my hurts, my frustration with him. I don't cry, I don't complain. I know that would serve no purpose right now but send him back to what is easier for him.
Your H has turned away for now, but that doesn't mean that he will not try again. OW has to let up on her façade and the wall has to start crumbling more and the chatter in his head has to get louder again for him to have to try again. Sometimes it takes multiple false returns for the MLC'er to make the commitment. If he should want to reconnect and try again, can you be strong enough for the both of you to bite your tongue, put your hurt to the side temporarily so he can have trust to lean on you and heal?
Denjef31