Your ex wife Jenny. She has been rumored to cheat on you and your sister in law even brought you proof… though Jenny claimed it was photoshopped it looked real… after losing control of your emotions you divorced her

At Christmas eve gathering both of your families are gathered in your mothers house and you all have a great time, but then the doorbell rings

your mom opens and sees Jenny

your mom: sweetie, you might wanna greet our unexpected guest… she shouts after you