I also think that Gautam's question to Diandra was aimed to clear out all his differences with Upen. Upen thought Gautam was one of the persons tosave him and Gautam wanted Upen to know that even though he did not save Upen, he did have a high regard for him and had actually fought with Diandra in support of Upen. That Diandra twisted it to suit her own purpose also got exposed.
Well waiting for Gautam to expose Soni too and that should spell doom to the Kai Kai brigade