They did have that moment over Amrit's anklet but I doubt that will last. The same way that Raj fluctuates between loving and hating Preet, Rohan fluctuates between seeing Simran as a person and seeing her as a revenge weapon.
Raman was miles better than this. I know that his pursuit of Simran was a little creepy at times but he always stood by her and was very blunt about the fact that he loved her. Even when the family enmity got in between them, he didn't give up. The only exception to this is, of course, the incident where he publicly humiliated her because Harjeet blackmailed him with her life.
Will Raj and Rohan ever be like this? Will they ever stand up for the woman they love, respectively, even if it means going against their own father? Right now, I seriously doubt this. They are both way too eager to please Harjeet.