How dare Cassio trying to steal my love away from me!
Bianca, I'm not really love but she is keeping coming at me...!
Act IV, ii
You're a liar, you're cheating on me
Why are you say like that ? I didn't do anything .
Act IV, iii
Would you cheat on your husband?
Yes, if it's for my husband then i willing do anythign
Iago tell that's Desdemona and Othello are having an affair. Then Iago tell Othello hide somewhere meanwhile he will talk with Cassio and make it seem like he and Cassio talk about Desdemona while they talk about Bianca. After that, Bianca came with the handkerchief, Othello saw it and think it's proof that Desdemona and Cassio having an affair. Lodovico came and tell Othello come back to Venice and Cassio can replace Othello's position
Othello asks Emilia if Desdemona is having an affair. Emilia say no, Desdemona is loyal. Othello accuses Desdemona of being unfaithful. Desdemona is shocked and denies this allegation. Desdemona asks Iago for his help and advice. Roderigo want his jewels back from Desdemona. Iago convinces Roderigo not to give up on his love for Desdemona and to kill Cassio
Emilia puts out Desdemona and Othello's wedding sheets as Desdemona requested. Desdemona asks Emilia if women cheat on their husband and if Emilia would ever cheat on Iago. Emilia says yes, she would cheat to get her husband power. Woman may also cheat on their husband if their husband is jealous, controlling and abusive. Desdemona is shocked and can not believe this is true