It must be love.

“A whacking crate of books is the only thing heavier than a washtub,” Sukey grumbled good-naturedly.

“It’s not a crate. It’s a hamper with six books in the bottom. And I only brought the first volume of each.”

“Ooh, you separated the volumes?” Sukey put on a wide-eyed expression. “It must be love.”

— from Sweet Disorder (Lively St. Lemeston #1) by Rose Lerner