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. :/
Wow, this art is so... sad but beautiful! I've seen all your J/L fanarts and I think that I love you! xD Really, you're an excellent drawer of James/Lily couple. I love them. ♥ Very, very, very good work!
Poor Lily, but i love how no matter what, you make her look beautiful, plus she has James, so i think she'll be ok. Again another great job from the girl i'm about to start worshiping....seriously considering creating a shrine to you (not in a creepy way don't worry) because your artwrk is the work of a godess.