First of all, Roshni has not matured as some people believe. If she had she would have faced her problems with Sid, asked for some space and gone off to catch herself. Second why the heck would she come back to Mumbai knowing that her relatives are all there if she had no desire to see them or go back home. Clearly she was going to run into somebody who knows her. Did she think changing her name ended her marriage to Sid? She's a fool because of all the things they have gone through she still has no faith or trust in him. And that stupid look on her face gives away her emotions. Suds wrong too, he should not have agreed to pretend that he married Aanya, now he's in a deep hole.