Disclaimer: I own nothing :v
"Flowers"
"What is this," Theo deadpans.
"Flowers," Blaise smirks at him, pulling the bouquet closer to Theo's face.
"Yes, I noticed that," Theo says, using a hand to push the flowers away from him, "Can I ask why?"
"Well," Blaise's smirk widens, and Theo's eye twitches, "You are the girl in this relationship."
Theo throws himself at Blaise, intending to hit him or harm him in any way he can, but at some point they're snogging and groping and making noises that aren't related to fighting at all, and later, much later, Theo picks up the ruined bouquet from the floor and conjures a vase for it.
He leaves it on Blaise's bedside table.