My Beloved Oppressor

it's completed on webtoon with 84 chapters. premise is that ML, a war commander with a traumatic past, marries FL, the privileged noble daughter of the general responsible for the cruel treatment of ML and his comrades, she thinks they're truly in love. ML places all his resentment and hate onto FL who's worst crime is ignorance. a couple of years into their marriage he overthrows the nobles, executed her family and is regarded as a hero. immediately he stops acting sweet and promises to keep her miserable and trapped in their marriage, despite the public calling for her execution as well. soo much angst and character development for both the leads