Just Patty by Jean Webster, Fiction, Girls & Women, People & Places

Patty and her two roommates from last year are back in school. And they're upset! School administration is trying to break up their dream team!
"It's a shame!" says Priscilla.
"It's an outrage!" says Conny.
"It's an insult!" says Patty.
"To separate us now after we've been together three years --"
"And it isn't as though we were awfully bad last year. Lots of girls had more demerits."
"Only our badness was sort of conspicuous," Patty admitted.
"But we were very good the last three weeks," reminded Conny.
Don't worry, they'll work around it. And raise more heck this year than ever before. . . !