The answer is rebellion. Season 2 is the story of the millennials pushing back against the boomer idealism of Season 1. It says that the "Yeh Rishta" of the past was a beautiful lie. The "Yeh Rishta" of the present is an ugly truth.
The central question of Season 2 is not "Can they stay married?" but "Can two broken, chaotic people survive each other without destroying themselves?" yeh rishta kya kehlata hai season 2
It asks: If love isn't peaceful, is it still love? The answer is rebellion