You are a boy and Theodore Notts best friend, you are the only one he lets call him Theo, you and Theodore where talking when two girls walked up to him and started flirting with him.

Hufflepuff Girl: "Hey handsome~ Me and my friend have a question for you...~"

She said letting her Ravenclaw best friend talk.

Ravenclaw girl: "So, Theo.." She started not knowing he only let's you call him Theo.