Whatever happens, I will always be your humble servant.
My husband is so upset about this.
Being here won't help my case. I must leave now since Othello is coming.
Desdemona, here comes your husband.
Hey! I don't like that.
What did you say? Wasn't that Cassio leaving my wife?
Desdemona is explaining to Cassio how she is going to do everything she can to get Cassio his job back. She is going to bring him up to Othello every chance she gets. Emilia also exclaims how upset Iago appears to be about the whole situation.
Not now my sweet Desdemona. Some other time.
If I have any influence over you at all, patch things up with Cassio.
Cassio thinks that he should leave because he will feel very uncomfortable with Othello in the room. He also believes that it will make his situation worse if Othello sees him talking with Desdemona.
I won't deny you anything. In reutrn, please leave me alone for a while.
Don't act like you doing this, is any favour to me!
When Iago says "Hey! I don't like that" he is talking about Cassio leaving Desdemona as soon as Othello appears. Othello is becoming curious as to why Iago did not explain what he did not like.
Did Michael Cassio know about you wooing Desdemona? No reason, I'm just curious.
Yes, he knew about it the whole time? Do you see something wrong with that? Isn't he an honest man?
Desdemona is beginning to try and work towards convincing Othello to give Cassio his job back. Othello shuts her down and says to talk to him at another time, because he doesn't want to talk about that right now.
Desdemona and Othello begin to argue because Desdemona is being stubborn and wants to talk about Cassio now, she doesn't want to put it off. She is angry that Othello is making it seem as if patching things up with Cassio is a favour to her, which she strongly believes that it is not.
Iago begins to ask about Cassio and if he was aware of Othello wooing Casio back at the beginning of their relationship. Othello becomes curious when Iago says that it is just a curiosity based question, and that he has no real reason for asking it.