I speculate he’s probably saying he hates her because he has some shady shit going on and he doesn’t want her to be involved, plots like these are usually the ML “protecting” the MC the shit way without the most communication
Wait since when there was a female lead ?? Wasn’t it just the sister in the novel and the end of the duchy, there was no mention of a later love interest ? I like the story but I feel like the author is just adding random stereotypical plot points every new chapter