I would glance at him and respond normally. After all, nothing that strange was happening.
The Duke was affectionate by nature only that right now his affection was being shown much more because he probably felt a little anxious.
'As always, We can't blame him for doing so.'
If I were him, and couldn't enter my child's chamber after she had a crisis the night before, I would freak out until I went bald.
'... It's good he still has all of that cool hair.' — Peeking at his slightly dishevelled hair, I thought. Immediately... getting bothered by it.
He was always very clean when meeting us, so seeing how a few strands of his hair had come to disrupt his perfectly combed hair made me a little restless.
'He doesn't look messy at all... But... Ugh! Nope. I don't like it.'