Iago increases Othello's fears by describing Desdemona's alleged infidelity in vivid description. Othello's headaches become worse, and he eventually loses consciousness. Iago continues, and makes sure that Othello overhears a bawdy conversation about Cassio and Bianca. Othello believes that the conversation is about Desdemona and Cassio. Meanwhile, Othello is recalled to Venice, and Cassio is ordered to take over his position in Cyprus. Othello reacts violently to this news, and insults and hits Desdemona in the presence of Lodovico the messenger.