I wish I'd looked at the word count before going into this; it's my one critique. Blaise/Luna is a fascinating pair to me; they're just so different. You display Blaise's side of it well for the word count but I do wonder why it is Luna agreed to marry him... (Sequel? *not so subtle hint, haha).

Heh. Quite amusing. XD

This is cute and I love a smitten Blaise!
And I think Luna loves him too, maybe just a bit more interested in the other details in life, but she does love him. You capture their dynamics quite nicely :)