A poem in which a lone speaker seems to be addressing someone else is a

A poem in which a lone speaker seems to be addressing someone else is a dramatic monologue. In this type of poem, the speaker reveals his or her thoughts, emotions, and character to an implied audience that remains silent. The speaker may address an actual person, such as in Robert Browning's "My Last Duchess," or may speak to an imaginary or abstract audience, as in T.S. Eliot's "The Love Song of J. Alfred Prufrock." The dramatic monologue allows for a more intimate and revealing exploration of the speaker's personality and motivations, as well as the themes and ideas of the poem.