That ending doesn’t happen because someone won an argument. It happens because someone—maybe you—stopped participating in the old script. You lowered your voice. You stopped keeping score. You loved people where they are, not where you wish they’d be.

This is the classic sibling rivalry that grew up. Maybe your brother still resents being the "forgotten child." Maybe your sister thinks you were the favorite. The feud runs on a single engine: perceived inequality . Every holiday becomes a cold war of passive-aggressive comments about careers, money, or who visited Mom last.

Person A is mad at Person B but won’t say it. So Person A vents to you , Person C. Now you’re the go-between, the secret-keeper, the emotional garbage disposal. This is the most common and most draining dynamic. You feel important (“they trust me!”) until you realize you’re just a human stress ball.