I have added the "bonus if..." part for each one

Just Friends

-shower eachother with compliments

-call eachother their friend

-"friends kiss sometimes, right?"

-bonus if childhood friends 

Heartbroken x Peppy

-grumpy mean one who has a broken heart and pushes people away

-peppy one is short and follows heartbroken everywhere

-"hiiiiiii!" "Go away."  "Why?" "Because I said so." "But why?" "ARGH!"

-bonus if peppy one has dyed hair

Banter

-queen bee x player jock

-constantly flirting, has dated in the past

-"hello, my beautiful." "Hello, my idiot." 

-bonus if one (or both) of them is rich/famous

Flirt x Shy

-queen bee x outcast

-shy is way in over their head

-"hey, cutie."  "...h- he- he- h- hello...?"

-bonus if gay ship and shy is closeted

Gay Stronk x Bi Fiesty

-big strong gay softy x short fiesty bi

-Bi Fiesty goes on rants (mainly lies) while Gay Stronk just nods and listens

-"and then I totally beat him up!  All five of them!  With nothing but my bare hands!  And I stopped a bullet!" "Mhm, that's great." "...you believe me, right?" "..."

-bonus if Bi Fiesty is trans masc or demi-boy

Short Temper x Calm

-Short Temper gets in a fight, Calm drags them away and apologizes

-Short Temper could escape Calm and go back to the fight at any time, but they don't want Calm to get involved in the fight and get hurt

-"sorry, guys!" "LET ME FIGHT THEM!"

-bonus if Short Temper is also Short Temper

Aro/Ace x Shiny Pebble

-shiny pebble

-very shiny pebble

-"so shinyyyyyy..."

-bonus if shiny

Flirty Skateboarder x Oblivious

-Flirty Skateboarder continuously flirts with Oblivious, who takes it as friendship

-Flirty Skateboarder helped Oblivious dye their hair

-"I love you too; you're my best friend!"

-bonus if Flirty Skateboard is queer in some way