yes, because she's recording it without her dad's consent. her dad might not want her to show it to anyone. confronting her before anything gets out of hand is the best thing to do.
Uh if it’s not really hurting him then i don’t think you have to. maybe you could tell your dad to see if he’s uncomfortable with it first and then see if you should confront her or not. if you confront her, there’s a chance she might not stop either, hope it works out for you
Dialogue is a conversation between two or more people as a feature of a book, play, or movie. In this case, actors on stage conversing are considered dialogue.