Did Raj forget about Raman? - Page 3

He did. He still thinks Preet killed his brother. But he doesn't care because he has Simi now. And maybe that's why he doesn't feel hate for her either.
That explains why he was trying to convince Raj that he actually loves Preet.
And for all you know, he probably likes Preet more than he loved his Veerji.
He even tried to protect her when Mohini's men tried to harm her.

I don't know. I wouldn't underestimate the relationship between two siblings. It's a difficult one. The way Rohan realised how important his mother was to him only after she left, he could've felt the same way about his brothers. I mean the way he treats Raj now as opposed to when he was a child is miles better.

But Rohan has always been civil to Preet.
Even when Raj brought Nihal's friends who misbehaved with Preet, he got angry although he was in no position to protect her.
And the honeymoon where Sakshi tried to spike his drink, it was Rohan who tipped Preet.
Rohan openly feeling hatred towards Preet is something I haven't seen.
He may think Preet murdered his brother, but he does not have to hate her for it.

That's true.

That's why he isn't the ML 😆
Nobody hates the FL more than the ML. Maybe the antagonist. But then Rohan is neither.