Stamp Paid

For the first time, Sethe is seemingly happy, now that she has a constant man in her life.  Yet unfortuanetly Paul D. does not know the whole story about exactly why Sethe is a little removed from the community.  When Stamp Paid shows Paul D. the clipping from the paper, it immediately causes the end of Sethe and Paul D.  Was Stamp Paid justified in showing Paul or should Sethe be forgiven and the past should be forgotten?  Obviously Stamp Paid thought he did wrong, based on his inability to not go into 124 and more.