Naku was quiet because she understands that Dutta is hurt right now and needs to take our his frustration somewhere and by punishing her if he can calm down, if he could feel better that she is ready to do tht....didnt she tell Dutta before that if loving u is a crime then I am ready for any punishment.....well, in coming days also, I am sure she will tolerate everything without uttering a word...Isnt that the punchline of many serials..."Meine tum par itna zulm kiya, aur tumne uff tak nahi kiya"...well, same cliche' continues....