What I think is, IF mentioned that Sai will be heartbroken that Virat didn't talk to her even meeting after so many years, so this Virat storming off is to create another misunderstanding in Sai's mind that what she was thinking all along was right, I don't think she'll anytime soon know that Virat assumed her to be dead.......she'll think that he hates her......Also the reason to hide Savi's paternity from him....
Virat's reaction is kind of expected, he will run away in anger but will come back soon, it's not like he can now start his Nayi shuruat with Pakhi without confronting Sai after knowing that she's alive and is living with a kid, which is his in all probability......so he will go, maybe to find out about Savi.....
Also, I guess Vinu will do some Zidd and he'll have to live there and get him treated with her, Sai and Virat will do some pact like behave as through professionals without attaching their personal strings but things will get murkier with MLA in picture, he has already planned a murder of Sai, he can do her character assassinating or can kidnap Savi, in all these Virat will help her out, I guess....
Also, somehow I don't think he'll reach Nagpur, he'll come back from half way or if he'll then don't think he'll tell Pakhi and Chavans about Sai being alive, usko khud process krna padega ye bat pehle.....and now that he has reached Kankoli, don't think they'll send him Nagpur anytime soon without involving him in Sai's mess, Kankoli is not some neighbour village to Nagpur that he'll come and go at any hour...
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