Sorry to lag behind the others on response to your post but you are definitely right on target.
My H told me that his A began with a friendship that a woman in the program started with him. He was unhappy in our M and SHE became his "listener" and supporter of his drudgery. SHE 'understood' his unhappiness, lonliness, feeling 'unloved' by me. SHE saw what a good man he was and how sad it was for him to feel so alone blah blah blah....she SAW his vulnerablilty and played it like a fiddle and HE let her.
So YOU are absolutely right and I have the proof right from my own HORSE'S MOUTH. T2