Well, she is somewhat of a tsundere. She likes to act strong but is actually an M who likes being ordered around. But girl, if after someone has just lost his virginity you tell him to go to hell and that you dont ever wanna do it with him again, well, you are gonna destroy the little confidence he has built, so its pretty stupid of you to think that he will come strong at you again after treating him like that.
Btw, the author is drawing he thicker and thicker with each passing chapter. Just look at those thighs, damn son.