In Part III the speaker takes his farewell from the Lady before going abroad; she wonders why they have not become friends, asks him to write to her and describes her melancholy, solitary fate; in the close the speaker thinks of the Lady possibly dying and questions his behavior towards her.
As Part III comes to a close, the speaker says goodbye to the Lady before leaving; she is perplexed by their lack of camaraderie, asks him to keep in touch through letters, and laments her lonely, melancholic life; ultimately, the speaker ponders whether the Lady might be facing death and reassesses his own behavior toward her.