why Parts always shuns Krish's advances?

I mean I do understand what she is going thru...but the way she always shoos him off is not very nice.....she can nicely also tell him...she is always irritated....i can understand that may be she doesnt love him till now but she knows that he loves her a lot and has been cleared off all the earlier blames on him, so why not atleast acknowledge his advances in a better way if not reciprocate with equal love?