Aries: You insulted their favorite anime
Taurus: You stole their cheetos
Gemini: You didn't text them back
Cancer: You said that House Of Memories is the worst song of the year
Leo: You lie too goddamn much
Virgo: You said their favorite crunkcore band sucks pokeballs
Libra: *doesn't fight because they think they're too pretty for that unclassy shit*
Scorpio: *also doesn't fight but they can*
Sagittarius: They try to get you to get out of the house and they almost break your laptop because that's how much they want you to outside and do something with them (which in this case you'd be fighting them)
Capricorn: You said their rapping sucks
Aquarius: You said "Hentai is for pathetic losers like you and you'll never be a comedian."
Pisces: Honestly, no one knows. Fights for no reason sometimes.