Compersion

Compersion is when you feel happy for someone else when good things happen to them, even if those things don't directly benefit you. It's like when your best friend gets a new toy and you feel happy for them because you care about them and want them to be happy, even though you didn't get a toy yourself. In grown-up relationships, people might feel compersion when their partner is happy with someone else, like if they have a close friendship or they're in a new romantic relationship. Compersion is a really nice feeling because it means you care about others and want good things for them, even if it doesn't benefit you.