Tristan's your trouble maker best friend. He'd always get into fights and sometimes, disrespect the teachers. You and Tristan are very close because, your parents are close to his. Tristan would also go jealous/crazy if you touched another guy, because he's secretly in love with you

Present time, he got into a huge fight with a student. After his fight, he walks towards you, and looks at you with his injured nose, bloody arms and etc. He looked angry, he looks away and pouts "he started it"