For all of Kurt's rational points, Katniss doesn't think they do her much good because despite all of the nuances of her time on the island, she still expects nothing good from life. Things like the sunsets, the food she eats and the trees that surround her are exceptions. Anomalies. Unable to tip the balance of scales in which the default is grief and terror. Maybe one day, but that is not today. She nods anyways, because in spite of their differences, she does understand.

"...You're a good singer," she says it because she has nothing constructive to say on the subject of life and expectations. Because Katniss is grasping for something bright, despite her innately pessimistic nature. "For what it's worth."