Spoiler warning::
Apparently to a comment spoiler i read (not 100% sure wether is accurate or not) the commenter said that Delota is actually not bad of a character. She's just your typical loveless starved noblewoman that was neglected as a child and is looking for someone to love her. And when Karhan helped her, and once she realized karhan was also treated bad by his mom she thought she could make him loved her. However when she saw that she could move pass her trauma and MC opened her eyes to a better 'path' she actually became business partners with MC.
That's all i could remember from the commenter.
For me, it's hard to hate her cause i can see why she act like that. it's cuz she's the typical spoiled brat. her character remind me of those villainess that act bad in their previous life then at 2nd lifetime they change and start appreciating things more. i would love to see a spin off where she got reincarnated or maybe she read a book somewhere that tells she's the villainess in this story and then she decided to befriend out FL and ML. like tbh she's cute but yeah she's a brat and yep ML is better of with FL not her. maybe Delota can be with anyone else but not FL's fiance. but idk if this story will ever redeem her character but if it does, then that's good cause rn i love to see when villainess change to good. like i feel bad if they just go down to villainess route without ever knowing what they did are wrong.