I would be interested too.. what did he do? Did he betray your confidentiality? That would be incredibly unethical and of course against the law.

The only things I can imagine is that you're a minor and you told him something and he told your parents or guardian or someone. Or that he had cause to think you were harming yourself or are a harm to others that he had an obligation to do something.
Whatever it is I am sorry to hear that you feel so bad.

Amelia