If you are so fond over her iniquity, give her patent to offend; for, if it touch not you, it comes near nobody.
– William Shakespeare
Othello, Act 4, Scene 1. As Othello’s emotions oscillate between love for Desdemona and hatred for her treachery, Iago provokes his jealousy further. He tells Othello that if he loves his wife after her sinfulness and it doesn’t bother him, he should give her permission to cheat. Iago’s sarcasm and manipulation works – Iago tips over the edge into a violent rage.