No, I don't think so.I think Raja heard all those negative things about him and felt the need to quieten down a little.
He felt the most betrayed by Rahul coz he went out and told the world that he liked Rahul the best. But in he comes again and in the secret room sees what Rahul is really about. How he says Raja is mentally unstable, unees-bees hai uska dimaag etc etc.
It's like when someone who you don't like betrays you, you kind of accept it but when someone who you consider nice and good and a friend betrays you, you feel hurt so much more than usual. Nahin?? Aisa hai na??