Both the sisters have only been happy a couple of times since the show started about 18 months ago. Each track is at an average for 3 months and the sisters cry for 60 of those and avenge for 30.1. Bride change track. Rosim's guilt at deceiving the family2. 3 witches torturing Simar and making her miserable
3. Negative Siddhant enters
4. Simar confesses about the bride change
5. Roli Prem marriage
6. Mataji turns against Simar
7. Mataji/Masiji plotting against Rosim and separating the m
8. Anisha enters and the blackmail track
9. Khushi enters in April/May time frame
If you assess all these tracks execept for the bride change plot lasted for 3 months. Their were other sub plots in the bride change plot.
Billo Rani ko aake 60 days ho gaye and she made Rosim cry for most of the 60 days aur ab Roli will play Khushi's game with Khushi and make her cry and that will last for another month or give or take so Khushi abhi 1 month toh minimum to rahegi but the good news is that she will most probably cry now.
Their is an article posted as well about Roli avenging Simar's miscarriage. Billo Rani abhi 1 more month ke liye toh hai. I dont see Simar accusing her immediately which is why I think Simar will have selective memory loss and block the trauma of loosing her baby. Let me find the article and post it.