How Do You Deal With Jealousy? Let It Out or Keep It To Yourself?

Most of us get the green-eyed monster from time to time. Whether it's merely feeling a bit covetous of a friend's adorable necklace, of a fellow new mother's sleeping-through-the-night infant, or having pangs of jealousy when a sibling or loved one shows off their enormous, new house.

I've always found jealousy to be one of the trickiest emotions (or sins, technically), and one that can really trip up even the healthiest of friendships. It's strange and unsettling—how can you be very close...