Anu,
I think that it may act on Bani but not sure. I am in two minds whether Bani will actually react to Jai's confession.
She did reacted to his voice in the board room and my guess she has also noticed that he turned around, after he left on Adi's insistence. May be just may be she will react to his touch and confession as he is the only one she reacts to. She is able to understand everything very well but what is preventing her from coming out of her shell is her belief that she has been betrayed by the man who claimed to love her to death. She is constantly battling in her mind that whatever has happened, it is not possible but what her eyes have witnessed cannot be false either I dont know but have this weird feeling that that butterfly meant that she is taking Pia blame on herself just like she did in childhood but is not forgiving her and at the same time is gradually withdrawing herself fron JW's world and thus the delay in reaction.
And as the doctor said she has to be given even a bigger shock to react, there could be no better thing to do than to confess his love for her.That will definitely shock her and the reptile as well. May be Bani will react and Reptile turns into state of shock after that. Kaam Khatam
God only if that would happen.
Love
Krishna