Your friend told you, in tears, that things at home are scary right now — that a grown-up there gets angry and frightening, and that sometimes your friend doesn't feel safe. They begged you not to tell anyone, terrified it would make things worse. You promised. Now you're carrying this on your own, and it's keeping you up at night. You're just a kid. This is much bigger than a normal secret, and the promise feels impossible to keep and impossible to break. If you tell, you're scared of betraying your friend and making things worse. If you don't, your friend stays in a frightening situation, alone, and so do you with the weight of knowing. This secret is too heavy for one child to hold.