I still feel that it was a foolish decision of Arnav to marry Khushi. anyways coming to the point. For keeping Khushi from his siter's life, Arnav married her. because he wanted to tie Khushi with a mangal sootru and sindoor. And told her he will not consider her as husband and nor he will keep any realtion. how could he think that he can tie Khushi with a mangal soothru and sindoor? or whether he understands that Khushi values these things very much. If that is the case, if he understands her that much, how could he think that Khushi will keep a relationship with married person disrespecting one's the mangal sootru and sindoor? i feel funny.. that if he really wanted to keep her away from Shyam, he would have send her too far from these. it was best he ask Nk to marry her. thus she will go with him in australia. problem solved.. [i know if so the story also is closed]but here what happened is he made chance to see them each other in this situation Arnav believes that there is something btn them and Khushi knows that it is conditional mrg. So guys do u really think that he took a brilliant step? yah.. i agree this is for showing Khushi's suffering section and Arnav's regreting section and Arnav to believe in real love..