Yes... that's an option indeed.
Vinu's indifference to her can be explained if she is indeed ill.
I mentioned this in my comment on page 1. Do check it out too.
I feel Vinu has seen this flip/breakdown of hers once in a while. And he is of course very young to understand this. So while he too is caring for her, like he asked her about her nange paun... he is guarded with her too.
Only shares what he wants and feels.
In the initial episodes, I also felt that he doesn't share much with V, protects him too in a way.
Might be like Sadhika says, he has seen these fights between parents. Hence he immediately said in the car "mujhe ladai jhagda bilkul pasand nahi hai"
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