Montresor has been insulted by Forunato and his pride has been hurt. now, Montresor must seek revenge to exact the favor.
Montresor plans how to take his revenge. It won't be easy because Fortunato is quite well known and always surrounded by people. He refers to Fortunato to a serpent who must be eliminated.
Montresor attacks Fortunato's weak point and lures him into a nonexistent cask of Amontillado.
Montresor makes the final move by hurting Fortunato's pride by stating that he would have Luchesi taste the wine better than him. Fortunato's pride does not aaccept this and follows Montresor blindly to his death.
Montresor offers to go back several times but Fotunato won't back down. Eventually they end in a crypt and Montresor buries Fortunato alive. Such is a conflict of Man vs Man.
After Montresor did what he did. He felt immediately sick and couldn't stand himself for a moment. A Man vs Self coflict because h=this is his first time taking a ife and he estill hears the bells of Fortunato's hat.