Still together but trying to save this

[PeteWyo]

Ok, so I am reading the book. I have come to realize that she wanted to work on this marriage before the OM entered the picture. Now she is so enamored with him because he is the only person in her life that hasn't hurt her recently. She is still in the house and she begrudgingly agreed to go to MC after a little shameless begging. So I am on the hunt for the right MC. I am trying to detach and GAL. But I am having trouble seeing how detaching from my wife and allowing her to continue the relationship with the OM is going to convince her that he is not the right person for her. She thinks that she married the wrong person and she thinks that this OM is the answer. She would be willing to work on things if it weren't for him. So how is me pulling away and letting her get closer to him helping anything???