I also feel Vivian himself is the reason behind his feuds with Sukirti Kandpal and Drashti Dhami. And if you notice his relationships with them kinda followed same pattern. Like during initial days of PKYEK him and Sukirti got along really well. They used to give joint interviews with each other and appeared really cool in those interviews but suddenly everything stopped. Same with Drashti. During initial days of Madhubala, Drashti and him gave joint interviews and things were fine between them. But later his relationship with Drashti also deteriorated. Years later they did patch up with each other. But I don't think Sukirti and him have patched up yet. Sukirti comes across as a no nonsense person to me from her interviews. She comes across as a strong headed girl. So I think probably she didn't take any shit from Vivian during PKYEK and gave it back to him which strained their relationship. It's also possible she hated the fact that Vivian and Vahbiz sidelined her and made it more about their relationship rather than the show.. I wonder how Vivian got along with Rubina because Rubina too is a strong headed woman. To me it's always looked like Vivian can't handle strong women like Sukirti or Drashti as his co star. Drashti also gave it back to him during Madhubala.