Aman loved Naina more than anybody in the world. But since he knew he couldn't have a future with her, he did everything he could to fill her life with happiness. Aman knew how much Rohit loved Naina. So he thought what better way to make Naina happy than to see her with somebody who loves her so much. And so he begins convincing Naina about Rohit! Watch this deleted scene from Kal Ho Naa Ho where Aman very smartly convinces Naina about being with Rohit!