Sharing these secrets with each other does increase the sense of closeness between Mrs. Van Buren and Esther, but the secrets themselves speak to the ways in which women's deepest desires are forced to stay secrets: Esther cannot openly love Mr. Marks, and Mrs. Van Buren might be able to play at writing love letters to a black man, but for her, it's something totally removed from her reality. These letters have little bearing on Mrs. Van Buren's life, except to give her pleasure, while the budding romance has real consequences for Esther.