"cool with you" meaning you feel cool with a specific someone and they "see you like no other" as you are also dreaming of them. (Basically a crush.)
From the song "Cool With You" by NewJeans (2022)
Person 1: It feels cool with you! I think you're great!
Person 2: I feel cool with you too! Thanks.
Where cool where you stay" is a Chinglish expression meaning "Go away and stay where it's cool!" It is used to dismiss someone or tell them to leave and not to bother you.
Person A: Hey, can I borrow your phone for a while?
Person B: No, I need it right now. Where cool where you stay!
Cool on you means that you want nothing to do with that person meaning you are done with them
her: I’m sorry I cheated
him: nah bro I’m cool on you enjoy your life
Basically means like ima fuhh wit ya so like ima talk to you later .
“Aight ima cool you “