Everyone had a breaking point, but no one expected that Irene would find hers in such a way.
Felix took Irene from the battlefield, passing Sir Gunnar as he did. They exchanged a brief nod with one another as if to silently say 'I am shirking on my responsibilities to help out a friend.' Based on what he witnessed when he heard Irene's helpless cries, he knew that was the best place for Felix at that moment.
The oldest apprentice carried Irene into the barracks, where he lay her on her usual cot and began to take off her boots.
He removed her armor and her outer coat so that her bed wouldn't be covered in the filth from the battlefield. It was also a very intentional decision to remove her belt and put her sword far away from her. The thought of her rushing into danger in the state of mind she was in felt extremely dangerous.
