Iago has convinced Othello that his wife, Desdemona is cheating on Othello with Cassio. This has left Othello contemplating over Desdemona's faithfulness. At first Othello did not believe a word Iago said about Desdemona, but as soon as there was the slightest amount of evidence. Othello started believing and eating all the words that Iago said. During Othello's soliloquy, he doesn't appear to be the same self-confident General he was formerly portrayed as. Instead, indecision …showed first 75 words of 946 total…

…showed last 75 words of 946 total…the most beautiful lady in Venice, might be unfaithful to him. If that is true, Othello blames heaven for the course of the problem: If she be false, O then heaven mocks itself! I'll not believe't The once honourably proud General has been degenerated through his pride and self esteem by believing he has been cuckolded. Obviously, his fatal trust in the villainous Iago, and his obsessive jealousy leads Othello's honest betrayal and tragic downfall.