Khushi said "Dhokhebazi hai woh" as in that would be considered cheating---the fact that her husband took the place of her Nani, NOT that her husband is Dhokhebaaz. I'll admit that Sanaya's enunciation at the end was not clear and the dialog got mis-heard, from Dhokhebaazi to Dhokhebaaz. I also think that dialog got edited, cos there is a jerk in Sanaya's dialog just before.
If she had said, "Dhokhebaaz" the dialogs between Arnav and Khushi in the green room would not have been about "Jeetna" or winning, it would have been about her callling him "Dhokhebaaz".
Listen to the dialog again and let me know what you think at 11.51.
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