What does Mrs. Flint's "grief" about Aunt Nancy's death suggest about the psychology of whites in the South and the North? (Chapter XXVIII, p. 121.)

Mrs. Flint became sentimental at Aunt Nancy's death and proposed that the slave be buried in her family's burying-ground, but Harriet's grandmother refused. This was surprising to Mrs. Flint, as "it had never occurred to [her] that slaves could have any feelings," but she consented anyway. Her offer was made out of respect for Aunt Nancy's role in her household. She obviously saw Aunt Nancy as a member in an extended family, thus, she offered the place in the family burial ground.