I know that Puppy argues that without full disclosure and openness, the chance of a relapse is pretty high. (Please correct me if I am reading you incorrectly).
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I think what I've said is that even if a wayward spouse is sincere, and wants to end their affair, that without a full no-contact/transparency plan in place, the chance of repeat infidelity is very high.
It sounds like your wife isn't even at that point.