Geet could have told Nandini everything and cool down her curiosity.. but I think it is not Geet's prerogative. And also Dev needs to tell his story to Nandini himself and let her know what he was and what he is now... He needs to face Nandini himself and he needs to face his own demons which are chasing him now and conquer them himself.
Right now Nandini has not realized her love for Dev. She thinks Dev as her friend but Dev needs to tell his story to Nandini himself. And that is why though she is taken back by the entry of a lady who claims to be his wife but she is not that much rattled or upset she is just surprised as why his friend did not tell her all this.
Nandini may believe Geet because she is her sister and she knows that she does not lie but in fact she needs to believe Dev. She needs to develop that trust on Dev. She needs to know that Dev though has done so many mistakes in his life but now he has completely turned around and he is truthful.
Until this moment she has known Dev as a very gentle and kind person. But his past is not that way.. It has lots of dark shadows... When Nandini knows about all that she is going to be shattered and she may also know what he did to Geet. But in spite of all that Geet told her to believe what Dev tells her. There will be lots of questions in her mind and she may hear lots of things but she needs to keep her steadfast trust in Dev.
Geet is keeping quite and not telling her anything but when NT will sees Dev's feelings for her she will manipulate but in all this Nandini needs to believe that Dev is the way she has known him. And whatever dirt comes from the past she needs to believe in Dev. Not because he is Maan Jijaji's brother.. or not because he is Geet didi's brother in law but she needs to believe Dev for what he is now... Then only her love and respect for him will surface.. She also needs to deal with the facts of Dev's past by herself and to know if she could trust him with her life or not.
So I think Geet took wise decision not to tell anything to Nandini ..
Yes it may create few problems as NT is around but well Nandini and Dev has to face the reality and if they can emerge out of this mess trusting each other.. then only their relationship has a chance to blossom.
So let's see how CVs takes it ...
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