yeah I have that feeling too that he is trying to convince Madhu that playing my game would hurt her a lot. There is no gain in this prem game but just basket full of unhappiness and loneliness.
I think he has the idea that Madhu is ignoring her hear call and listening to her mind which is turning her to be Rk. this leads to another scene connection where Madhu confronts Rk after the party fiasco that later says Rk u cant see in my eyes am turning into it
I have a feeling may be Rk left the place but never left and heard her monologue and whatever Rk did today was to remove her from the dilemma she is facing
after all Rishbala understand each other