Dude. It's so nice. :-bd I love your Art and a lot of people would love it if you drew some stuff from The Life and Times (it's a really, really, almost-canon fanfiction). Just a thought.
Hmmm...maybe they just got back from break, and Lily is still stinging from the emotional abuse she got from Petunia (who thinks she's a freak for being a witch) - and Petunia just got engaged to the walrus Vernon Dursley. Petunia doesn't want Lily pulling her "freak stunts" at her wedding. :/