I am an a**hole only to people that are already are being to me or no matter what i do, still say say i am. If you're being kind, i'll be kind back. it's not my problem to be nice with people to be treated back like trash, the same way people be kind to you to you treat them like trash.

For the most i hate you or you hate me, i try to be respectful, but if you just say "you are horrible, hope you die" then what would be the reason for me to kind back to you, if i know i'll just be treated back like trash ? The same way why being respectful just for the sake of being, to someone that don't matter what i try to be nice, will still say i'm mean because bias ?

TL;DR :
[Be an idiot to me or say i'm being to you when i'm not --> Don't expect me to be kind to you]
[Be someone that (for the most you don't like me) respects me --> Expect me to be kind back (no matter how i don't like you)]