[RCF]

On the contrary , if the story does develop to Meera and Desai accepting their love. Then that too will end similarly like their first night and the next morning Meera will leave Krish and go with Desai , that means the final chapter will go in detail on how Meera and Desai have fallen for each other and how they have planned their future now. In my opinion , that is a dark ending when you consider the entire story but it can also work with the right justification and I know the author is capable of justifying it if he wants. Personally I prefer the first ending but I am willing to accept this ending as long as the justification is done well.

Of course we will be onboard with any ending that Krish explains but if we look at nuances behind the ending, Its still hard for me to accept Desai winning over Meera as his manipulative nature is still seen and despite what Krish thinks or Meera thinks about him, he is same person underneath who has planned all this while to steal Meera from Krish and through devious plans trying to achieve it. I will be disappointed with your dark ending but it is what it is..right.

Then there is the surprise thriller ending where some truths are revealed. Maybe Ananya shows up and reveals Desai has been screwing her behind Meera's back and Ananya is pregnant with Desai's child. Sam upon hearing Ananya's pregnancy committed suicide and Ananya is here to reveal the truth to Meera and Krish thus unmasking the real Desai. Or there can be Maithrei coming up with her version of a Desai's mind game. Basically a good portion of the thriller element will feature Desai revealed as a bad guy , and that leads to Krish and Meera seeing the error in their ways of including other people in their games and thus they stop playing it and start their healing process. 

I would prefer this happens then it happens after Meera chooses Krish over Desai, else her credibility takes a hit. Choosing Desai after knowing his past mistakes is nothing great and easy choice.