One of Billie Jo's best friends, Livie Killian, is moving away to California with her family to escape the dust. Remember: It's the 1930s, a.k.a. way before Facebook and texting, so the chances of these two seeing each other again—or even talking again—aren't good.
Their class throws Livie a party, where she shares memories of her friends and gives them gifts, including a picture of Billie Jo eating an apple and playing piano. When the party is over, she helps clean up while her friends go home to study.
Billie Jo feels guilty because she wishes she were leaving Oklahoma instead of her friend.