Well in Divya's point of view, Veer's mom hated Iccha anyways and what's done is done, you can't change the fact that he married her in ceremony. Also a good point that if it was the other way around and Iccha did this to Tapu then would she have had the same reaction? Divya is another annoying character, she can't use her own brain to think for herself. It's annoying but the writers get a kick out of annoying us and making us crazy. The only characters I have some faith in are Jogi and Veer, but even Veer made the mistake of not telling his mom the truth about Tapu, wondering why he didn't tell her yet...but from the looks of it, the saas probably will get over it fast, cuz in the end she got the bahu she wanted, she's too status oriented.