He regained his phase of shock and he looked away but he couldn't hold his thought that was occupied by nandani seeing her in a totally different avatar... for him she has always been his wife friend (the victim)(the dismissal is stress)... but know she is the women in his house taking charge of her life and being her real self (breaking free from her shell)..
Kunal was mesmerized she held his thought n sight something that he did not expect and it made him uncomfortable ... Its not love it's his confusion n shock of seeing nandani like this which is confusing his thought and making him think otherwise.
I totally loved the scene it was shot beautifully... & i actually like how they have lit this new phase in the plot.. kunal is seeing in nandani what he never seems to see in mouli (mouli is carefree lets have fun girl, she likes her comfortable dresses n nandani likes to dress up she's quiteand timmed... the complete opposite to mouli...