Same thought crossed my mind. I had mentioned it in another post. In most TV shows, they show mother son bonding well. But in this show, Vyom is so obsessed with Sharanya that he does not give a damn to his mother...how strange is that? The mother who gave birth to him is somehow nothing?? Madhvai had said both Rajan and Vyom are forcing relationship. I hope Madhavi elaborates on that point. There must be some connection between Rajan Madhavi story and Rajan Vyom forcing marriage on Sharanya.
I strongly feel Vyom has suicidal tendency. May be before when he came to know about Shivanya, he may have attempted suicide. So Rajan may have lied to Shiv that Sharanya loves Vyom etc...and then killed Shiv. Perhaps that is why Shiv is angry with Sharanya...May be that is why Madhavi keeps saying that Sharanya is bad for Vyom...