I want to expand a bit on what Puppy said about the "friends" part.
From what I've read around the boards over the years, reconciliation occurs because the WAS remembers and misses the true essence of their LBS that underpins the friendship in the M. That is why I am constantly reminding you to re-attract your H for he misses his best friend: YOU.
It is okay to be in the friends zone for now...because that's what lead you two to get married in the first place. H is experiencing some withdrawal symptoms as he breaks things off with the OW. It will be a very bumpy road for all of you as he tries to cut ties with the OW. She may very well try to use all sorts of tricks to draw H back into the A.
However, I would suggest that you draw the line at hearing some of the intimate details about H and OW. Not happening! You can say, in addition to what Puppy said about H cleaning up his mess, "H, I know you can figure this out yourself. I have confidence that you will be able to do this."
Listen to H like a lover...no criticisms or trying to fix him. Become the 'OW' to the XOW! LOL!
