I find DD emotionally blackmailing Roshni by reminding her of what Sid has done to the family. DD is a person who can single handedly clear all these mess.
Imagine a situation where DD says the following dialogue to Roshni:
" Roshni, I know Sid has done wrong by hiding his identity and lieing to u. But I feel he truly loves u and is not involved in snatching our property. He was even ready to lay down his life for u, without even thinking about his family. He was searching for u like mad all these 6 months. If his love was fake and married u to snatch our property, he would not have bothered to search u. So, may be it was Simran or RVs actions that led to our destruction. And Sid have nothing to do with breaking Sam's marriage. He tried many times to expose RV, but we never believed. All the circumstances have made things worse, so I think we should give Sid a second chance.
And I know, even u love him so much even today. I can see that love in both of your eyes. It needs a big heart to forgive someone, so lets forgive Sid this time. We should not forget whatever he have done during 6months he was with us. We both become so close and he had done so many things for ur happiness and our family. He is not a bad person, he is good at heart So, lets just talk to him and give him another chance"
I'm sure if DD says this to roshni she would surely forgive Sid. Now Roshni is so confused and no one is there to show her right direction. Her heart wants to go back to Sid but she don't want to disappoint DD. šShe was just standing captivated looking into Sid's eyes in the hospital and even while going to Bangkok, DD was the one pulling her away. A little push from DD can remove the suffering of Roshni and Sid. I'm sure if she talks to sid, he may be even ready to stay with them and go against Simran and solve all their problems including getting back the property.
So, DD is the key to SidNi reunion but I don't think she would realize it until the Yash Roshni marriage day. Now, she have an alternative in Yash, so she would try very hard to hook up yash and Roshni. But as mother, she would have been an ideal one if she for once identified what Roshni's heart longs forš