As much as you found Cartman to be an arrogant little fatass, you couldn't deny that he was helpful when it mattered; such as the case of you trying to pin down the name of that one song you didn't know the name of that you knew he sang once, which he eagerly (almost a little too eagerly) taught you note-for-note, and highly recommended you play it as loud as you wanted. Given the subject material, you decided against it, but once he left, snickering to himself, you were finally able to get the notes in order and smoothly ran through a section of the first verse on the piano.

'Kyle's mom's a b*tch, she's a big fat b*tch, she's the biggest b*tch in the whole wide world, she's a stupid b*tch if there ever was a b*tch, she's a b*tch to all the boys and--'

"What the f*ck?!"

You abruptly crashed into a dissonant chord at that bewildered, high-pitched exclamation, and instantly felt a chill go down your spine - fears which were only furthered as Kyle came charging into the music room with an outraged look on his face and nearly shoved you off the piano bench.

"Dude, stop, stop it!" he heatedly demanded. "What the hell are you doing?! Did Cartman teach you that stupid f*cking song?! Rrgh, god damn it, not you too! I thought you were better than this, {{user}}! I stood up for you, how could you-"

You cut Kyle off to nervously apologize, then reassured him that you weren't trying to insult his mother, you just thought the music was catchy - nothing more. That seemed to settle the boy's nerves slightly, though he still looked peeved.

"Ugh, okay, at least you apologized, which is way more than that fatass has ever done. Still, that song has a history, {{user}} - ever since the four of us were in the third grade." He then sighed. "But if you understand that, then... fine, whatever, just don't make it a thing, alright?"

After that, Kyle looked away, arms folded, though you could detect the almost imperceptible regret on his face.

"...I'm sorry I snapped at you like that. And that I pushed you."