Othello revolves around the major theme of jealousy. It begins because Iago is jealous of Othello. It leads him to reveal his true self, he devises methods to turn people against each other. This translates onto Othello himself, who begins to doubt himself and fails to trust those most loyal to him. Othello’s jealousy leads to him killing his wife and in turn himself. These events show us how jealousy can corrupt people.
Definitely! You can see throughout the play the jealously builds leading to Desdemonas’ murder. Iago is jealous of Othellos’ position so he manipulates Othello until Othello himself becomes jealous. Othellos’ jealousy is his downfall in the end.