Why have they never?

They never shed any light on what happened to Rashmi. When she died. How she died. Why is that? Even at her sons wedding Nandani never brought it up. Weren't her and Rashmi always so close. Then wouldn't she miss her? Or Gayu never had any flash backs of her mother, never missed her, never thought about what happened to her.

Sameer Rasmi dies in plane crash and Gayu mentioned it once while talking about Akshra's place in her life.

I dont know why Rama and her hubby left India?Why didn't they take Gayu with them? Is Gayu in touch with Sameer's family? What was her equation with them? Did they never accept Gayu? Or its simply coz Only Akshra can take care of her that she was left in Singhaniya house after the death of her parents?

I am not interested in any of these questions but would like to know Did Nikhil patch up with Rama?
Is he a positive character now? I think he will return back to get back Gayu? May be he is a negative character who hates Singhaniya's as according to him his own mother chose Rashmi over him when he cheated Rashmi for another girl.