After Roland returned to the castle, Roland still could not feel peace in his heart. As the saying goes, people would shed tears of delight. But in his view, Hero cried not only out of delight but it was also a way to pour out all her suppressed emotions after suffering years of unfair treatment, pain, and false accusations.
In other words, the fact she put on a tough look did not necessarily mean that she did not feel pains. It was rather a mask underneath she hid all her true feelings. It was not an unnormal reaction for a girl who had just come of age before the misfortunes had weighed upon her. She had done very well in being strong and hopeful.