No shot she feels anything other than ambivalence at best for him, right?
That said - I can definitely feel sympathy for her situation, even if she's portrayed as a "cold-hearted type". But if her pushing him so much all this time was in an effort to meet that ridiculous "condition" from her grandfather, it at least contextualizes her aggressive tactics and focus.
I assume the plan is to try and somehow fulfill the condition in six months' time. That, or get him into a position that her grandfather would condone an engagement between them. I doubt that one more, since a certain pedigree would be required in a marriage candidate and Ryuu.....doesn't seem like he'd match that criteria.