May be CVs don't want to expose ridhima past Or vansh-ridhima relation reality ... before ishani & family ..(angre may be aware of it already) NOW!
If Vansh hiding sure that Angre knows. Vansh getting instant updates from Angre. But both Angre and Vansh are trying to decode Ridhima I think - why she is doing all this?
Like obvious reasons, Vansh might be wondering if she said yes for marriage with Kabir, why asking again his help?
But I hope all these doubts will be erased when he sees her concern for the family. I wish someone can see the tears in her eyes and pain the heart.