In regard to the extent of their relationship, commentators have said that: "the expression of their love was limited almost wholly to letters and very occasional farewell kisses or holding of hands". Freeman shared parts of Carson's letters with her husband to help him understand the relationship, but much of their correspondence was carefully guarded. Some believe Freeman and Carson's relationship was romantic in nature. One of the letters from Carson to Freeman reads: “But, oh darling, I want to be with you so terribly that it hurts!”, while in another, Freeman writes: “I love you beyond expression... My love is boundless as the Sea.” Carson's last letter to Freeman before her death ends with: "Never forget, dear one, how deeply I have loved you all these years."