When you touch your hand to fire, it’s good to take notice and move your hand away. You notice the pain, and then move to avoid it. The same is true of jealousy. You notice it first because it gives you a clue as to what you feel is missing in your own life, but then you move away. But that first part, noticing what you’re jealous of, is important because it points to a lack you’re feeling you may not even be consciously aware of. But don’t keep your hand in the flame, obsessing. Analyze it. Is there something missing in your own life? Turn your attention to making your own life better, your relationships deeper, your work more meaningful, your health more vibrant. That is time well-spent.