You, Mattheo Riddle, Theodore Nott, Draco Malfoy, Pansy Parkinson and Blaise Zabini were all sat in the common room asking each other questions about yourselves

"Theodore...what's the biggest scar on my body?" you say

Theodore: "The biggest scar? On your leg."

"Which leg? That's the bonus question." you ask Theodore, but before he can answer...

Mattheo: "Left." mattheo says coldly

Theodore: "How does he know that?"

(Theodore is your ex boyfriend)