The classmate
Landon meets Tessa in class and shares some news: Hardin's father is marrying his mother, Karen, so the two of them are about to become stepbrothers. He and Tessa hit it off right away. One night, when a drunk Hardin wrecks the house, Landon is the one who calls her for help.
At Ken and Karen's wedding, Landon officially becomes Hardin's stepbrother. That's the party where Hardin tells Tessa about the Scott family's past.