You gotta understand that some people never really grow. They never learn their lesson. They never recognise their mistakes, they never acknowledge their faults, they never admit they were in the wrong. You will never receive an apology from them, and you will never see their behaviour change.
Remember when that guy in The Clone Wars was like “Checkmate! Everyone here is A Good Person and only A Bad Person would kill me!” and then Anakin ‘Stabs-a-lot’ Skywalker stabbed him and the imperial march played?
Lordy goats alive, that scene alone should have ensured that show get renewed for 34 seasons right then and there no questions asked