Iago on jealousy – ‘O beware, my lord, of jealousy! It is the green-eyed monster, which doth mock the meat it feeds on.
Othello – ‘of one not easily jealous’, ‘of one that lov’d not wisely, but too well’, and ‘but, being wrought...’
Jealousy
At the end of his tale to Roderigo about how he was passed over for promotion to lieutenant, Iago displays his jealousy of Cassio. He says that Cassio, a (our phrase is "bean counter"), has the job Iago wanted, while Iago has to keep on being [ensign] . A little later, Roderigo, who is desperately in love with Desdemona, expresses his jealousy of Othello's marriage to Desdemona by exclaiming, [own] . Where Roderigo says "carry't thus" we would say "carry it off." []
After Desdemona makes it clear that she loves and honours her husband, Brabantio remains vindictive, and bitterly warns Othello that Desdemona may turn out to be a slut: . No father has ever expressed a more hateful jealousy of his son-in-law. []
In a soliloquy at the end of the first scene in Cyprus, Iago speaks of his own motivations. He says of Desdemona, [feed] . He wants revenge for his own suspicion that Othello has gone to bed with Emilia. It's eating at his gut and he won't be satisfied [reason] . The phrase "even'd with him, wife for wife," seems to mean that he has some notion that he might have sex with Desdemona, but it's not the sex that's important. Othello must feel that same poisonous jealousy that Iago feels. []
Topic Tracking: Jealousy
Jealousy 1: The play opens with a discussion of jealousy. Iago is upset because Othello selected Michael Cassio as his lieutenant. He is jealous of Cassio's position both in the military and with Othello's service. This initial jealousy is the catalyst for the play's sequential plot of mixed jealousy and destruction.
Jealousy 2: Brabantio is partially jealous of the Moor for stealing his daughter's love. He no longer may be the most important man in Desdemona's life. Furthermore, Roderigo is in love with Desdemona, and is slightly jealous of her relationship with Othello.
Jealousy 3: The lovesick Roderigo has trouble with his hidden feelings for Desdemona and is jealous watching the two in love. He follows Iago's directions easily, perhaps partially because of his jealousy of Othello's relationship with Desdemona.
Jealousy 4: Iago openly divulges his plan of destruction, which incorporates jealousy as the key factor. He intends to create a strong sense of jealousy in Othello by setting up the mirage of an affair between Desdemona and Cassio.
Jealousy 5: Iago plants seeds of jealousy in Othello and then speaks of the 'green-eyed monster' as a force to be feared. Jealousy is personified as a monster.
Jealousy 6: When Iago tells Othello of the handkerchief, he has the evidence necessary to prove Desdemona's unfaithfulness. It is now that the jealousy sinks deep into Othello's soul and starts to vividly destroy his psyche.
Jealousy 7: Bianca, Cassio's common lover, also becomes sick with jealousy. She sees the planted handkerchief in Cassio's room and believes him to also have taken a lover. Her jealousy exists on a much smaller scale, but illustrates that the sentiment is universal.
Jealousy 8: As the play concludes, all causes of jealousy are proved false. Desdemona was never unfaithful, but Othello realises the truth too late. Jealousy is the source of pain and death for these tragic characters; the green-eyed monster has succeeded in killing them.