Here's why:
* Single Speaker: The poem features a single speaker, a man reflecting on his relationship with a woman.
* Revealing Character: The speaker's thoughts and feelings are revealed through his words, giving insight into his personality and motivations.
* Addressing an Audience: Though the speaker directly addresses a "you," the "you" is not truly a character in the poem, but rather a device to help the speaker express his thoughts.
* Dramatic Situation: The poem is presented as a single, extended speech delivered within a specific, implied situation. We understand the speaker is reminiscing about a past love, likely in a moment of emotional turmoil.
While the poem does have a romantic theme, its structure and form solidify it as a dramatic monologue, a distinct poetic genre popular in the Victorian era.