My friend is a teacher at my son's primary school. She teaches a different class to my son and has never taught my son. They have little to no contact at school.
I told my son's current teacher some information about extra support in place outside of school to help my son academically. It was useful for her to know so that they could share information/support etc.
Today my friend questioned my son about this at lunchtime at school. Therefore my son's teacher has told my friend. My friend has nothing to do with my son at school, there is no reason for this information to have been shared other than idle gossip. I think they have both been unprofessional. I don't know how to handle it though without upsetting the friendship.
My son is mortified as he didn't want anyone knowing about the additional support and my friend questioned him about it in front of his friends.
AIBU to think they are both out of order? Would you raise it? If so how?