From a purely objective point of view it's good because there isn't any way Katniss could have reached spots where the chafing was the worst. Yet she can't help but wonder what this means to her, and she's sure that it means something to him. This is the issue here, a guilt that she can't quite reconcile for some reason. An uneasiness in her gut that Katniss can't get rid of, yet muscles that have been tensed for what feels like years are beginning to relax.