Desdemona does not love you, you moor. You must have used dark magic.
The conflict here is an external conflict between Desdemona and Othello. This is an external conflict and man vs man because Othello is arguing not with himself, but Desdemona and she is a physical human on the Earth. And this propels the action of the play by revealing that Othello has truly fallen for Iago's tricks and Desdemona knows nothing about it. ACT 4 Scene 2 Desdemona: I'm your wife, your true and loyal life. Othello: Go ahead, swear to that, so you damned to hell for lying. Otherwise the devils will mistake you for an angel and be too scared to grab you. Go ahead, make sure you damn yourself by swearing you've been faithful to me. In the evidence above, it shows that Othello is arguing with Desdemona and Desdemona is truly innocent of what Othello accuses her of. And in the picture above Othello is wearing red to represent anger due to what he heard from Iago about his wife. And Desdemona is wearing white to represent that she is innocent of what she is accused of.
The conflict shown above is an external conflict between Othello and Brabantio. And this is man vs man because Othello is arguing with another physical person. The argument propels the action of the story by showing the readers that Othello truly has feelings for Desdemona and Brabantio continuously denies that. Act 1 Scene 2 Brabantio: You evil thief, where have you hidden my daughter? You devil, you've put a spell on her! Anybody with eyes could tell you that a beautiful and happy young girl like her, who;s refused to marry all of the handsome young men of the city, wouldn't run off with a black thing like you unless she'd been bewitched. You're something to fear, not to love. It's obvious to everyone that you've tricked her, drugged her, or kidnapped her. That's probably what happened, so I'm arresting you. --- Arrest this man as a practitioner of black magic. Grab him. If he struggles, use force! Othello: ... You've accused me of some serious crimes. Where do you want me to go to respond to these charges. The textual evidence above shows that Brabantio is starting a conflict by falsely accusing Othello of kidnapping Desdemona and drugging her to make her love him. In the picture it shows Brabantio in red because it represents his anger towards Othello and the mob behind him. And Othello is wearing white because it represents that Othello is innocent of what Brabantio accuses him of.
The conflict here is an internal conflict between Othello and himself. This is man vs self because Othello is struggling with jealousy and him thinking of Desdemona cheating on him with Cassio. The argument propels the action of the story because now Othello does not doubt that Desdemona is cheating on her because Iago has supplied her with enough evidence that Desdemona is cheating on him. Act 4 Scene 2 Othello: "If God had decided to treat me like Job, making me sick and covered with sores, reducing me to abject poverty, selling me into slavery and destroying all my hopes, I would have to accept with it patience. But instead He's made me a laughingstock for everyone in our time to point at and scorn! Even that I could put up with. But instead, my wife, who's to be like the fountain that my children and my descendants flow from, has rejected me! Worse than that, she's polluted herself, so that the fountain is a place where disgusting toads copulate and reproduce! This textual evidence shows that Othello feels betrayed by Desdemona because Iago gave Othello a lot of reasons to believe that Desdemona is cheating on him. And in my picture it shows that Othello is mad and is dealing with his own emotions. He is wearing red to represent his anger and he is talking to himself in the mirror because the mirror represents himself.