In Yesterdays Episode,When Sona says that she has prepared green tea ice cream for Dev. Ishwari told sona that Dev will get sore throat if he eats ice cream at night.
Expectation (Sona's Reply) : So sweet, still you are thinking Dev as a child. But he has grown up.
Reality (Precap) : Dev falls ill because of Ice cream (guess).😒
Here the question is what CVs trying to prove,
Ishwari knows about Dev very well ?
Or
Sona is still need to know about Dev?