Henry had returned to the castle later than he would have liked.
Despite leaving the princess happy and sleeping, there was still a bit of him feeling unsettled by their interaction. She hadn't promised to change her behavior or consider his perspective on the situation whatsoever.
The line that she would try to be understanding though she wished he could focus his time solely on her was eating away at him.
With these thoughts in mind, he found himself tossing and turning even when he was in his barrack and able to sleep. It lasted until morning and he didn't imagine he got more than two hours of sleep before he had to proceed with his usual duties.