Kumud's increasing apprehension of Saras leaving her grew as the conversation between the adults went on and the fear finally came true when Saras agreed to leave today. It hit her hard. It's not about a few days separation, it just the 'separation' she can't bare but at the same time she can't stop him. Instead she let's out all her pain on the poor flower in her hand, which scatters on the floor...leaving her in pieces.
Yes when he truly leaves her, she will be scattered but he will come back and hold those broken petals in his hands. He might not be able to recreate the flower, but he can protect the withered petals.