Everyone has their breaking point...no matter how strong...since this entire track has been built up such that Nandu has internalized her trauma, it would be logical that an outlet is needed at some point for catharsis otherwise I'm not sure how they can give her closure...she needs to let it all out in one big outburst of some sort.
She is trying but obviously FAILING to get away from Manik...even if he hadn't followed her, she was anyways dreaming about him and waiting for his calls...so goes to show she herself isn't always able to follow what she sets her mind to...her heart and emotions factor in beyond her control sometimes.
yes, she needs to break down too...she is getting over hurdles one by one... touch.. smoke .. next will be water.. then which one will be her breaking point... getting locked up in a cramped space or gettting kidnapped again (which will not happen).. any if they do show her break down i want that to be their private moment... and then she can utter the three magical words for him...