@Seraph_best_girl She didn't go in with the intent of becoming a better person...and how does that take away from her clearly starting to become one and actually feeling ashamed and horrified of her past life and admitting to herself she was just awful to Claudia and Maryjun and deciding to never be like that again!
She is no longer the girl that before she looped back, thought she never did anything wrong after trying to kill her sister, heck, in the LN she actually sabotages herself and outright refuses to entertain any ideas of romance BECAUSE she is filled with regret and she is absolutely terrified of becoming a stalker again or being way too possessive of her boyfriend/husband, even seemingly encouraging Yulan to find someone else, even her sister, over her because she does not want to treat anyone like she treated Claudia and Maryjun ever again.
Just because she isn't shouting all the time she decided to become a better person, doesn't mean she isn't becoming one.