When someone you care about experiences a positive event—like a work promotion, a graduation, a new romance—it is considered not only normal, but emotionally healthy, to rejoice in their success.

Every relationship can happen upon its own set of issues that take some time to work through—and jealousy is a common one. While the green-eyed monster can get in between any set of partners, people ...

Compersion is sometimes billed as "the opposite of jealousy." But the two emotions can coexist. Imagine you’re at a party and you spot your partner across the room, hitting it off with someone else.