Thank you! I do like portraying a character changing his or her mind about certain things, and this was a character I haven't yet done that for.

Narcissa would do far worse than watch her son have sex to secure his happiness. :)

I think there probably are influences that aren't Christian in the wizarding world, since they parted company with Muggles some few hundred years ago, but I don't think they could be the whole of the wizarding world. They do still celebrate Christmas and Easter, after all.