I don't think you can take these comments to mean anything else. He basically says he finds the relationship fake because he can't imagine what Karan sees in Teja and that Karan's basically out of Teja's league.
https://www.youtube.com/watch?v=7mV4fk0JZME
On a side note, he really has been shooting his mouth all over the place. Feels like all that he didn't say inside the house is coming out now in interviews and he has sad several strong things that we never got to see in the house.