Katherine thought about what all of her feelings meant for her and Damien plenty of times. And maybe she thought she hated him for a while but she realized that she was more angry about what happened between them since the beginning and how they ended up entangled in each other's lives. At the same time, she hated herself for a lot of things.
She hated that she fell in love with him. She hated that he had saved her that night… which could be a reason why she couldn't bring herself to hate him, but because he was a member of the Park Family, she hated it.
