Wreck My Plans by Jillian Meadows

Lena’s plans are simple. Surprise her family for Christmas, don’t tell them she lost her job, and most importantly, spend the week relaxing with the people she cares about.

But when she arrives in Juniper, she discovers she’s not the only unexpected guest this year. Her brother’s best friend is back after disappearing three years ago without a word. Gavin has the kind of charm Lena has always been drawn to, but even though she’s dying to question him about why he left, he’s the kind of temptation she needs to stay far away from.
Gavin didn’t see this coming. His job is to design blueprints and build strategies for dealing with the unexpected, but he didn’t have a strategy for the possibility of seeing Lena again. He’s been dreaming of her since he left, but giving in to his feelings would risk the only home he’s ever known.
New plan: try to be friends again. Just friends.
But as the pieces fall into place about why Gavin left, staying friends is the last thing on their minds, and all the plans they’ve made might end up completely wrecked.