Almost inevitably, somewhere along the journey of your life, you will come across one of the most universal traits: jealousy. You may even have a close friend who seems to want the best for you, but you have observed some disturbing dynamics in the friendship. He did not seem overly pleased when you announced your promotion at work. If I say congratulations, can we go back to focusing on me now? Sheesh. She was not truly joyful when you revealed your engagement.