I've been thinking over the concept of 'houseroom' from the last chapter and had the thought that the term could be some of the problem with Dumbledore assuming all would be well in the Dursley household. He asked that Petunia give Harry houseroom and they had two different meanings in mind.
I love the thought provoking ideas that you come up with thank for sharing.
Author's response
I hadn't thought of that, but you're right.
"T"