[RCF]

That is Heatful 

Man , I wish some how I forget Part II , So i would not feel sad for Krish condition. And at last I feel , The Biggest Tragedy here is that Meera's Character reduce to just for the sexual stuff  , Either with desai or Krish . Meera's role used just to write sex between Desai or Krish .

If we clearly see the story as if it as a path for cuckold nature of Krish, Its natural progression.

First part explored cuckold as fun, games with couple planning together while they spiced up their sex life.
Second part explored it as more serious factor while couple are not together, their games were still alive even when they were not together.
Third part is exploring cuckold at its peaks where games became overwhelming and consuming their life. So when we say consuming, its not only Krish but Meera's life also, both losing control.

If story doesn't progress towards the third part then there won't be end to it, as end of second part did not address Krish's cuckold nature nor gave it any definitive conclusion to it.  

Finality to it is either accept it that it is part of their life and move on or Krish realizing he hates being cuckold anymore and self realization. We should see one decision of these two in last chapter if couple are together else we might not know what will happen with his nature if he is single.

~RCF