Generally, the promos are misleading. That's Star Plus' way of perking our attention to tune into the next episode. And those promos also carve a path for interesting disucssions on the forums.
In terms of the dramatic scenes on the 12/10 show, I bet they must be another eye wash. Mrs. Roy was probably crying about having to give her away in marriage. Champa-Rumpa must be shedding tears of gratitude that Hitty stuck with her despite of her mom's bombardment into their lives. The whistling scenario must be insignificant too. Or at least I hope so...