(To himself) Oh what a curse marriage is! ... This is the plague of important men our wives betray us more than those of poor men. We are destined to be betrayed when we are born. (III.iii.272-280)
Watch your wife. Watch how she is with Cassio. (III.iii.201)
Really, I don't think you're behaving very well (III.iv.94)
Bring me the handkerchief My mind is full of doubt. (III.IV.86) The handekercheif! (III.iv.92)
She says you're going to marry her. Are you? (IV.i.112-113)
Now he's saying how she took him into our bedroom. Oh, O can see your nose now. But I can't see the dog I'm going to throw it to. (IV.i.135-136)
She was here just now. She hangs around me all the time...I swear to you, she put her arms around me like this- (IV.i.128-131)
Act III scene iii deals with the internal conflict Othello is going through. Iago tries to get revenge on Othello by implying his wife might be cheating on him. Othello believes Iago is on his side and takes his word for it. However, readers are aware Iago is just trying to ruin the relationship of the two lovers. Readers can also infer Iago is glad that Othello is worried and is going through hardship. This is an internal conflict because Othello is battling with himself trying to persuade his mind that Desdemona would not cheat on him. However, his jealousy gets the worst of him. At first Othello doubts these thoughts, but as Iago is about to exit the scene Othello is conflicted with himself and claims marriage only brings pain to all men. This scene is significant towards the plot because it sets the major problems and shows where the thoughts of Desdemona cheating derived from. It also starts off the early rage Othello has for his wife, therefore their relationship is broken.
Act III scene iv, is an external conflict, and or man vs. man with Othello and Desdemona . In this scene Othello questions whether or not Desdemona has the handkerchief that Othello gave to her as a love toke. However, Desdemona lost the valuable item and does not admit her doings. Othello is angry and is finally convinced Desdemona cheated on him. From Desdemona's view, she is startled and frightened as to why her husband is acting so different, strange, and obscure. Othello yells at Desdemona and exits the scene. Othello also explained how there is magic hidden in the fabric of the handkerchief which stores the love between the two people, but now that Desdemona lost the handkerchief, which implies their love is over. Emilia stands in the back watching Desdemona and Othello fight, she later comforts her and reveals her thoughts. However, Desdemona does not know Emilia was the one who stole the love token and gave it to Iago.This scene establishes the external conflict between Othello and his wife, it also shows their first official fight.
In act IV scene i , Othello and Iago construct a plan in which Iago will talk to Cassio. Othello believes Iago and Cassio will talk about Desdemona, however Iago and Cassio discuss issues about Bianca. This set up was a part of Iago's plan to hurt Othello. Cassio is also unaware of the issue and mindlessly reveals his negative thoughts of Bianca. This is an example of an external conflict particularly man vs man. Othello is mad at Cassio for hanging around with Desdemona and calling her a whore. Othello is also mad at Desdemona for sleeping with Cassio. All this dialogue Othello overheard was false towards Desdemona, but Iago made it seem as if Cassio was referring to Desdemona . Therefore, Iago is having a hidden fight with Othello. This scene is significant because it propels the plot by further raging Othello. He is now angry at Cassio and demands blood. Othello wants to murder Cassio. Iago is succeeding in his plan.