The Summer of Wild by Jessi Hansen

Wilder Cox has always been the third wheel in Cash and Ingrid’s star-written romance. But when Cash’s dad offers to pay for a backpacking trip the summer before college, Cash ditches his girlfriend and best friend for Europe. Without their buffer, Ingrid and Wilder decide to bond over Cash’s absence with a Lonely Summer Bucket List. Get a tattoo, skinny dip, go to a concert, and sneak into the movie theatre are just a few items on their cheesy list. While Wilder grumbles his way through the summer without Cash, Ingrid uses it as a chance to rediscover herself. And she finds that star-written romances can’t compare to a summer of Wild.