Even if it breaks your heart / Erin Hahn.

Enhanced descriptions from Syndetics:

A heart-buckling ride of a romance by beloved author Erin Hahn, Even If It Breaks Your Heart is about two teens finding out that sometimes, the hardest part of discovering what you want is getting the courage to pursue it.

The only thing keeping nineteen-year-old Case Michaels together after the death of his best friend, Walker, is a list Walker left behind of things he wants Case to accomplish in his absence. So far, though, Case hasn't even been able to continue riding bulls in the rodeo circuit, something he's done his entire life, balking at the thought of competing without Walker by his side. But the list? Case is determined to follow it to the letter- and he follows it all the way to Winnie Sutton.

Eighteen-year-old Winnie Sutton just wants to keep her family together. She graduated high school early to work long shifts at the Michaels family ranch so she can support her younger siblings and a father who's more than happy to let Winnie fill the responsible parent role. If she sometimes sneaks out to ride the horses herself and forget about life for a while- well, that's no one else's business- until the day she crashes headfirst into Case Michaels. Case sees her riding skills and immediately ropes her into competing for the ranch and becoming his friend.

Winnie and Case couldn't be more different, but Case can't help but be inspired by Winnie's badly-hidden passion for riding and competition. And there's something about Case that makes Winnie want to try grasping onto a dream for herself, whether that's a shot at a rodeo trophy, the annoyingly handsome rancher's son who won't leave her alone, or maybe both.