Throughout the text , Iago mentally manipulates Othello to make him believe Desdemona is cheating on Othello with Cassio. Othello reacts to these allegations with anger and confusion. In Act III.iii, the text states "Oh Iago, all the love I felt is gone, vanished in the wind". This shows how Othello had lost the love and affection he had once felt for Desedemona.
I I think I saw Cassio use the hankerchief you gave to Desdemona
Oh Iago all the love I felt is gone... Vanished into the wind
She dropped it carelessly
Good girl, give it to me
In the text, Othello is continuously manipulated by Iago. This manipulation mentally affects Othello and makes him believe Desdemona is cheating on him. One reason why Othello believes he is being cheated on by Desdemona is because of Desdemona losing the handkerchief Othello had given her. Othello had given Desdemona a handkerchief to symbolize his love for her. However, Iago makes Othello believe Desdemona had given the handkerchief to Cassio when she had really dropped it by accident. In Act III.iii the text states "Why are you yelling at me so angrily? Is it lost? Is it gone? Tell me, is it missing?". This example shows how Othello aggressively questions Desdemona about what happened to the handkerchief believing that Desdemona had given it to Cassio.
Why are you yelling at me so angrily.. God help me
In the text. Iago tries to damage Othello and Desdemona's relationship. One way he does so is by obtaining a handkerchief that Othello had given to Desdemona to symbolize his love for her. In Act III.iii, Desdemona accidentally drops the handkerchief but Emila is able to find it. Emila hopes to return the handkerchief to Desdemona but, Iago intervenes and requests to have the handkerchief for personal purposes. The text states " I'll leave this handkerchief at Cassio's house and let him find it. To a jealous man, a meaningless thing like this looks like absolute proof ". This example shows how Iago needs the handkerchief so he can give it to Cassio and make it look like Othello is being cheated on by Desdemona.