Why does Montresor hate Fortunato in "The Cask of Amontillado"?
This is a question that has puzzled readers of Edgar Allan Poe's short story, "The Cask of Amontillado," ever since its publication. It is likely that Poe deliberately did not give more information or a specific reason about the relationship between the two characters, probably to maintain the mystery that surrounds the two men. We know that the two, Fortunato and Montresor, are acquaintances, and that they come from old, wealthy families. As for Montresor's hatred, we are only given two hints: We know, from the first line of the story, that
THE THOUSAND INJURIES of Fortunato I had borne as I best could...
The injuries are never explained by Montresor, and there is no further mention of them in the story. We also know that
... when he ventured upon insult I vowed revenge.
Again, the specific insult is never identified, but judging from Montresor's decision to kill Fortunato for the offense, it must have been fairly serious.
In "The Cask of Amontillado," we are never given a real reason as to why Montresor hates Fortunato. Montresor seems like a person who has no conscience and cares little about what he does to other people. He is just bent on revenge and takes all the necessary precautions to make sure he gets his revenge on Fortunato.
"The thousand injuries of Fortunato I had borne as I best could; but when he ventrued upon insult, I vowed revenge."
This statement is the only clue we are given about what Montresor feels towards Fortunato. The only thing we know is that there are certain injuries that Montresor feels Fortunato has done to him. It is quite obvious that Montresor is mentally not stable. What is even more disconcerting is the fact that he is confessing to someone what he has done, and that whoever he is confessing to knows all about the problems Montresor has. It is implied within the short story that Montresor has gotten away with this kind of thing before, and he will more than likely get away with it again.