Then what about that promise of vasu to Bihaan that if he stop's Thapki's marriage with Dhruv, she will accept him as her son? Now she should fulfill that promise right? may be this will break Bihaan's heart again and in his heart broken state he might reveal he is the adopted son (may be thapki keeps instigating him as because of his misdeeds, his mother doesn't consider him as her son etc. hinting his hand in getting married to her). may in that rage he will spill the bean
Vasu just said that to emotionally coerce him.
Of'course she never meant to accept him as her son.
I think you might be right.
She'll probably only light the diya for dhruv and though Bihaan will get hurt seeing this, he won't show it.
I remember a scene when Bihaan first entered the show. He heard Vasu saying to bauji that Bihaan is not a part of this family etc.
He was really hurt but he pretended like he did not hear them. And the next moment he saved Vasu from stepping on broken glass by putting his hand beneath her feet and got injured.
Then told her that I can't see you get hurt and I don't care what happens to me.
So he'll probably try to act all non-chalant but be really hurt inside.
Like I said, I hope the CVs handle this track with sensitivity.
It has a lot of potential for emotions and drama.