I don't agree with the decision "not-to-tell". Personally I feel no good has ever come from a relationship based on lies. And yes, if they want to show Aarti and Yash bonding, then what better way to bond than to share a secret, work through it, get over it, and come out stronger? I was hoping that this was the way the cv's would go. So that when the rest of the family found out - like they eventually will - Yash would stand by Aarti and defend her by saying HE knew the truth all along and it makes no difference to him that she's a divorcee and not a widow.
C'mon cv's - show us something new and constructive on this show. There's enough attack and melodrama coming from bua and Gayathri already. We don't need Yash to behave like that too. Make this show about how a newly married couple, one with baggage at that, POSITIVELY work their way into a strong marriage.