Iago that Desdemona is having an affair with Cassio. This plan occupies the final three acts of the play. He manipulates his wife Emilia, Desdemona's lady-in-waiting, into taking from Desdemona a handkerchief that Othello had given her; he then tells Othello that he had seen it in Cassio's possession. Once Othello flies into a jealous rage, Iago tells him to hide and look on while he (Iago) talks to Cassio. Iago then leads Othello to believe that a bawdy conversation about Cassio's mistress, Bianca, is in fact about Desdemona. Mad with jealousy, Othello orders Iago to kill Cassio, promising to make
Othello that opposition of Brabantio to Desdemona marrying Othello-a respected and honoured general-cannot make sense except in racial terms, citing the scene where Brabantio accuses Othello of using witchcraft to make his daughter fall in love with him, saying it is "unnatural" for Desdemona to desire Othello's "sooty bosom". Singh argued that since people with dark complexions are common in the Mediterranean area that for a Venetian senator like Brabantio to oppose Desdemona marrying Othello for merely being swarthy makes no sense, and that character of Othello was intended to be black. Michael Neill, editor of "The Oxford Shakespeare", notes that