Edgar can be a tricky man, but he is speaking of a lover that is no longer around. His lover is mentioned in stanza one, he feels that all is lost.
anyways the answer you're looking for here is that ; The speaker's love was unrequited
I think the answer is one but I am not sure
For the answer to the question above, the last class of my old professor's life took place once a week in his house, by a window in the study where he could watch a small hibiscus plant shed its pink leaves. The class met on Tuesdays. It began after breakfast. The subject was The Meaning of Life. It was taught from experience. It took place in <span>Morrie's little house right outside of Boston.</span>