traducerea : What went wrong ? Their friendship was clearly struck by the green-eyed monster we have allexperienced jealousy at some point in our lives . have you ever fell just a litlle bit jealous of your friend's popularity? Do you never, ever feel the tiniest bit annoyed when your parents make a fuss of your sister's accomplishments? And how did you fell when your best friend invited another friend to the cinema instead of you? Don't worry if you have at times felt jealous : Jealousy is not only a normal feeling it can also be positive ! The origin of the  word itself is a clue : jealousy comes from the Greek word zelos , the desire to do as well or better than another person . It  can encourage you to become as good as those you admire so much .