Answer:
He enjoys imagining that Fortunato is suffering.
Explanation:
Based on the novel Cask of Amontillado, Montressor believes that Fortunato has insulted him and that he must pay the ultimate price: with his life, so he lures him to his home from a carnival under the guise of tasting some rare wine.
Montressor bears these thoughts before he lures Fortunato to his home to be killed: "I must not only punish, but punish with impunity. A wrong is unredressed when retribution overtakes its redresser."
He takes him down the basement, fastens the drunk Fortunato, and locks him there where he won't be discovered. His feeling about imprisoning Fortunato is that of delight as He enjoys imagining that Fortunato is suffering.
