As others have said, t will not have to report that. If there was a protective order, t might encourage you to report it to the police, but t wouldn't be able to break confidentiality around it unless you gave permission (unless you fall into a protected class such as gravely disabled, a ward of the state, elderly...).
I'm sorry this person is harassing you. I hope you are able to get t's support around it all, and you are able to keep yourself safe...