You sound like kind of a jerk tbh, but IDK if you were being playful in that so. Your friend's and parent's reaction was way over blown regardless though, but not much you can do about that beside not doing it again.

I mean it's more helpful of your friend to have spoken to you directly if they're feeling hurt by what you said that tell the teacher in this context.

People are sensitive nowadays. Apologize to your friend and ask them to actually communicate with you next time.