I don't mean to be rude about your father - I'm sure you love him and e loves you, very much.
But this is very concerning and angering to me. As a mother, and as a teacher of kids (mainly girls) your age, I find what he's doing rude and frankly manipulative and borderline abusive.
Again, I don't mean to offend you, but this is over the line.
I had my husband read your OP (also a teacher), and he rolled his eyes and said "that's awful."
I wish I had further advice for you, and I swear I'll stop posting on here - LOL! - but I just had to let you know that.
Hang in there, Hun!