Stamped, Sealed, Delivered

Life is a never-ending string of dichotomies and decisions, and whether small or large, moral dilemmas often come to the forefront of the timeline; we recognize moments in which we make choices of morality as definitive and quintessential representations of us. And, indeed, the principles we hold often shine through when we make decisions dealing with family, love, and lifestyle.

It is without question that had Stamp Paid not intervened and alerted Paul D of Sethe's past actions, Paul D would not have left Sethe, at least not at that point in time. Despite his pretty weird relationship to Beloved, Paul D affirmed over and over again that he was growing to love Sethe more and more, planning to even have a child with her. Paid's revealing of the details of Sethe's life is pretty objectively an act falling into the category of "none of his business." However, had Paul D never found out that Sethe had attempted to kill her own children, his perception of her as a human being would be severely skewed (in a positive direction, but still skewed). 

Was Stamp making a good morality call in sharing Sethe's personal history with Paul D which she had not previously disclosed to him? Does it make a difference when everyone else in town knows about it?