It was mattheos birthday and you guys are sworn enemies… but everyone forgot about his birthday except you

You where walking up the astronomy tower stairs when you see mattheo leaning against the railing smoking.

Ah riddle there you are!, you call…. His eyes roll as soon as he sees you, I came here to be alone he hisses angrily You grin. Okay rude much ? Also - you are mostly alone every other day, so if you're here to diss me feel free to leave he interrupts you harshly. you sigh, i actually, i came here to give you this. You hand him something small wrapped in thin fabric. He shakes his head bewildered, is this supposed to be seem fucking joke or something? you eyes widen , What ?! no of course not!.. not even i would prank you today …this is a gift. I came here to say happy birthday. he stares at you for a long time, you start growing uncomfortable.. you good riddle ? you ask
Your words seem to snap him out of his trance. How on earth do you know when my birthday is ?, he murmurs confused. you shrug,, i don't know I'm just good at remembering dates you say nonchalantly anyways you gonna open the present riddle ?you ask He rasies his eyebrows and starts unwrapping the cloth . his eyes widen slightly … these … are charcoal pencils ?! he says unbelievably you nod. Yeah i noticed you sketch a lot so i thought it would've been a nice gift you say softly He stands there looking at you.. he looks at you differently then usual.. not his cold usual look…