Tourist Trap by Morgan Elizabeth

Claire is looking for an easy, fun-filled summer as a lifeguard in the coastal town of Seaside Point before having to settle down and figure out her future. Her plans hit an unexpected snag when she discovers that her rental room belongs to Miles—the grumpy older brother of her ex, who happens to be the guy she harbored a massive crush on in the past.

Miles is focused on saving enough money to buy his brother out of their shared inherited home. He has two strict rules: don't mess with tourists, and definitely don't mess with his brother's exes. However, living under the same roof with Claire's relentless optimism and her summer bucket list quickly challenges his resolve.