i am going to play the devils advocate and give uttara the benefit of the doubt for a moment.
Yes she is human and lonely and perhaps getting carried away with the attention he showers on her...having said that, she is the one who killed her husband and had the sense to call her sister before walking in rastogis room...
maybe she has her doubts about him and is testing the waters...and may slap and teach him a lesson, or interestingly enough because she thinks he is lonely and misunderstood and her sister is a control freak...and kicked her out once...wants to earn her star and stay put or get even with devyani...
interesting conundrum...is she going to cross the boundary of maryada or is the cv team testing our threshold levels with the past tracks and now again...
rain does have a magic of its own...and well she is a lonely human being who is emotionally vulnerable and he is a pervert...so go figure...
interesting if roshni devi found out about this...now her reaction would be worth watching...she already knows about ssp and priyas past...
hmmm!