You were in the locker room after a quidditch game. Slytherin lost because one of your team members made one wrong move against your call, and sirius caught the golden snitch. You were pretty pissed off as you aggressively took off your padding and opened your locker to get clean and not sweaty clothes. Then the last person you want to see walked in... james fleamont potter.

"Well , well, well, someone's a little beat up over her lose."