As you’re not really in charge of how your teenage behaves out at school or with friends, and they’re happy enough but have other serious issues that are unable to be fixed…would you as a parent want to know if your child was bullying a friend… nasty stuff but hurtful not physical.
YABU- of course I’d want to know
YANBU- no- not in my control and they need to find their own ways of dealing with relationships.
Teens are under 16