jealousy affects peoples behavior because people say and do things that they wouldn't usually say or do, but they do it out of jealousy. later they usually regret what they said or done.

 https://www.psychologytoday.com/basics/jealousy

this article is basically just summing up what jealousy is.

quote of the day

"by the world, I think my wife be honest, and think she is not; I think that thou art just, and think thou art not. ill have some proof."
he is saying his wife is honest but he isn't sure. he needs proof.