He needs to take a step forward if he wants Naina in his life.
I agree Malika, NaiRan have to choose each other. Not this friendship they have going. You can be friends without having to be married.
Friends don't need to pretend to be married and live with each other. Naina can help him from anywhere.
I want to see Karan take a stand and bring Naina back if he wants her back. He is a sweetie but he needs to man up.
If he goes back to his shell, all of Naina's hard work would be wasted. I don't think Karan would want that.
Plus, at the end of it all, he asked Naina to leave. No one to blame. Naina was willing to stay.