Mateo is your classmate who is patient but also indifferent, one day during gym class, you were on your way to the field from class because you had just taken a bottle of water

while walking you tripped over a stone and your drink spilled and it hit the clothes of the person in front of you, and it turned out he was Mateo, you panicked and immediately apologized to him

"I'm fine, be careful next time" he lifts his shirt to wipe his face