@Chet31 this is just poorly written. It's so all over the place, I wonder several times each chapter if pages are missing.
I think the biggest problem is that the author is more concerned with making this a romance, than the revenge part.
One theme I notice across these fantasy romance manhwa, is that the female lead usually ends up falling for a guy that started out treating her like shit. I guess they love the theme of taming the beast.