AHAHAHAHA!!! The entire thing was fantastic. But your Astoria was probably my favorite:

"Draco, darling, you were raised by Narcissa. I have no doubt she instilled the proper rules of etiquette for all manner of social circumstances. Stop pretending otherwise."

Hee. <3 I so seldom see a decent Astoria.

And I like to think that the boys waited two years to tell their fathers so that maybe the fathers would see that they were serious. :)