Sujata, you see your step-sons love but can't you see Vividha's love for your son? It's not changed, she's told you what he means to her. You asked her once, which was great but now you're telling Suman that Atharv was Vividha's past? Do you not get anything through that cotton wool brain or are you just hellbent on not listening to what Vividha WANTS?
You and Suman took your decisions and suffered in your own ways. Why are you trying to make a decision for Vividha? Let her decide.
Vividha is so frantic when it comes to Atharv. Does anyone actually get what they share in that household?