“Their onscreen chemistry of bro and sis is fabulous, and nobody can make out what happened between the two. They are very professional and their personal problem is never a hindrance in their professional commitments," adds the source. Initially Varun and Sneha shared a good rapport. “Yes they had a good relationship, but then things went sour. It"s surprising for us also, and most of the time this is the hot topic on the sets too," concludes the source. Such are the life dearies… aaj katti toh kal batti bhi hogi!