Both. In a way. He is jealous of Othello because he has everything he wants: a high rank and a beautiful wife from a upper class family. He is jealous of Cassio because Othello has promoted him to Lieutenant and not him.
Lieutenant.
Othello was just out of earshot when Iago talks to Cassio. He has told Othello that he is talking to Cassio about Desdemona but he is really talking about the woman that Cassio is really having an affair with, Bianca. In 'Othello' Iago tricks Othello by planting Desdemona's handkerchief in Cassio's room.
Iago wanted to make Othello jealous of Cassio. Had he simply said "Cassio is having an affair with your wife", Othello could have dismissed it as a lie or a mistake. But by saying "I'm sure there is nothing going on between Cassio and your wife" Iago gets Othello to suspect Desdemona and to build up his suspicions on his own.
Neither. Othello was the captain, Cassio the lieutenant and Iago the ensign.
Othello promoted Cassio as his lieutenant instead of Iago.
Lieutenant.
Othello was just out of earshot when Iago talks to Cassio. He has told Othello that he is talking to Cassio about Desdemona but he is really talking about the woman that Cassio is really having an affair with, Bianca. In 'Othello' Iago tricks Othello by planting Desdemona's handkerchief in Cassio's room.
Iago wanted to make Othello jealous of Cassio. Had he simply said "Cassio is having an affair with your wife", Othello could have dismissed it as a lie or a mistake. But by saying "I'm sure there is nothing going on between Cassio and your wife" Iago gets Othello to suspect Desdemona and to build up his suspicions on his own.
Iago wanted to make Othello jealous of Cassio. Had he simply said "Cassio is having an affair with your wife", Othello could have dismissed it as a lie or a mistake. But by saying "I'm sure there is nothing going on between Cassio and your wife" Iago gets Othello to suspect Desdemona and to build up his suspicions on his own.
Othello said that Iago is such a loyal friend to Cassio that Iago told about the fight in a way that looked better on Cassio. Even so, Othello fires Cassio and understands that Iago did what any friend would do.
Neither. Othello was the captain, Cassio the lieutenant and Iago the ensign.
Othello promoted Cassio as his lieutenant instead of Iago.
Iago seizes Cassio's departure to manipulate the situation and create suspicion in Othello's mind. By orchestrating a conversation with Cassio that Othello overhears, Iago casts doubt on Cassio's integrity and loyalty, further sowing discord. This moment allows Iago to exploit Othello's insecurities and fuel his jealousy, ultimately advancing his own schemes against both Othello and Cassio.
Othello was just out of earshot when Iago talks to Cassio. He has told Othello that he is talking to Cassio about Desdemona but he is really talking about the woman that Cassio is really having an affair with, Bianca.
When Iago tells Othello Cassio slept with her.
Iago is extremely jealous of both Cassio and Othello. His plan is to make Othello believe that Desdimonia has committed adultery with Cassio. That way, Cassio will be fired from his high military status and Othello will loose the love of his life (Desdimonia, his wife.)
While Othello is hiding, Iago and Cassio discuss Desdemona. Iago uses this opportunity to manipulate Cassio into speaking favorably about Desdemona, knowing that Othello is eavesdropping. This conversation plays a crucial role in Iago's scheme to incite jealousy in Othello regarding Desdemona's loyalty.