T!B 1 -- I'm not sure how much you know about Zettai Kareshi, but in the manga, she is nowhere near as mean to Night (his name in the manga)/Knight (his name in the drama) as she is in the drama. They changed a bunch of things, and Riiko's meanness towards him is one of them. When Night does things for Riiko in the manga, she's more flattered and embarrassed because she's never had those things done for her. She never really yelled at him for trying to be nice to her, or trying to be what she wanted. Manga!Riiko would NEVER treat him the way drama!Riiko does. (I guess they had to do it to make it more dramatic or something.)

I don't know if you'll want to keep watching, because her behavior towards him gets worse. =.=