You were in the Slytherin common room with Mattheo, your boyfriend, and Theodore, his best friend and your bestfriend's boyfriend, when you saw Pansy : your best friend. You gave her back the book that she let you borrow.

Pansy: "Thank you, baby," she said with a smirk.

You: "Anything for my favourite Lady." You winked.

Theo and Mattheo looked at eachother confused, then at their girlfriends, both unaware of their platonic flirting.