A large part contributing to Othello’s realistic portrayal are his insecurities about his background, his appearance, age, speech, and culture, which all lead him to believe he does not fit into the Venetian society. His uncertainties make him prone to jealousy and vulnerable to Iago’s treacherous lies.
The theme of jealousy is perfectly portrayed by the captivating character Othello, and the effects the grasping emotion has on him. Through Iago’s calculated manipulation, Othello is persuaded to believe that his wife has been unfaithful to him. The lie causes Othello to become infuriatingly jealous, frustrated, and unable to control these emotions. This is shown through his use of repetition when he demands “O, blood, blood, blood,” metaphorically wishing his revenge by the deaths of Desdemona and Cassio, whom he believes have been disloyal. As you can see, this wild emotion takes hold of Othello and causes havoc on his relationships, as he wishes death upon his once beloved wife and close friend.
Othello’s distrust and suspicions are shown most prominently though the use of stage direction when he strikes Desdemona in public, an action considered to be dishonourable and break the norms of society. By doing this he demonstrates his lack of control