If Zoya BD was used to show its Zoya picking up her dupatta then why wouldn't she stop? She hasn't seen Aditya in a year! She isn't heartless.
So this makes me think its not Zoya or Zoya BD, its just someone who is reminding us and Aditya of Zoya presence. Thats just my opinion.
I don't mind this Milly girl so long as she keeps her distance. We don't want her falling madly deeply in love with Aditya because he won't love her back! Hence why I wouldn't like to see a third angle at all. Aditya to be wooed by another woman apart from Zoya is a big time fail! I can't stand that!
:)