Yah same, I too find myself asking the exact question same again and again. I believe only when Gulaal start's looking at Kesar like a man, and not like the child he once was, she will be able to love him like a woman love's a man. As he loves her. It will take time for her feelings to develop and for her perspective to change. I think slowly through his love and romantic advances toward's her, her perspective will change, and slowly, her feelings will too. Right now Gulaal herself is the main obstacle, because I think she's to scared to acknowledge how her and Kesar's relationship is developing. For the sake of her "once-married" status, and for the sake of Talli's feelings. But once she recognizes this, everything will change.