I don't understand why anyone would want Kunal back in Mauli's life after the way he treated her. Doubting about her pregnancy was the last straw. Even Nandini was sure that Mauli won't lie about something like that but this man took all but one minute to conclude that Mauli was lying and run back to Nandini. Mauli seems to have moved on at least partially and she's happy with the life she has. Why complicate the matter by dragging Kunal back into her life? Let her be with Ishaan and Mishti.
If Nandini died after giving birth to her and Kunal's child then it has been at least 5 years since her death. So if Kunal didn't bother to look back on his mother and Dida in all these years then it is pretty much clear that he is happy with the life he has. I mean he may not want anything to do with Mauli but if he didn't even bother with his own family then maybe he's happy living in Nandini's memory and taking care of their daughter.
I don't really want either Kunal or Mauli to be interested in each other. That would be huge injustice to Mauli's character. And why would Nandini's daughter need a mother all of a sudden? There are so many kids whose parents are single and they are happy in their lives. Not everyone would want to move on from their dead partner and yahan toh Kunal's totally mad for Nandini. So if he is shown interested in Mauli, then like you said, his character would be butchered even further. Best thing is let them be happy in their own lives and kids can be good friends too. But teach their kids some values so that they don't end up making the same mistakes their parents did 6 years ago.
Coming to Kunal's punishment: his best punishment is to live a life without Nandini for whom he even left his own family. Mauli should move on happily and Kunal should live alone without Nandini or his family. That's what he deserves for abandoning his pregnant wife when she needed him the most.
Arjun
Sensational South
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