The Fake Wedding Project by Pippa Grant

Faking an engagement to my secret high school crush was not on my to-do list when I landed for a short visit home. But when Amanda Anderson announces that she’s my fiancée, I take a leap and play along with the farce.
Why? Because the Capulets and Montagues have nothing on the Andersons and Silvers of Tinsel, Michigan. In the name of bringing peace to our Christmas-themed hometown and ourselves, we’ll play the part of Romeo and Juliet.
If our relatives think we’re in love, they’ll have to end this ridiculous feud. Right? Amanda’s a professional dog walker, and I’m an engineer who loves dogs—how hard could it be to show our families what else we all have in common?

The heat and this town’s infernal holiday cheer are messing with my head, though. And once we start making our fake wedding plans, I can’t seem to keep my heart out of it.