For the people saying Vivian is busy living his best life, while Karan is being petty, see this video.

I don't appreciate the bhaiya-bhabhi thing in this video, but the point of the video is so apt. Karan is the same person who he was inside. He thinks that Vivian is being disingenuous and calls him out. Some people can deem that as petty, but he's not wrong and he's not crossing any limits. But Vivian is no saint and I can only imagine how his attitude would have been had he won the show. All in all, this video makes a great point.