Evergreen (Christiansen Family #3.5)
Susan May Warren

Before he can stop her, however, Ingrid agrees to spearhead a major church project. Then their faithful dog, Butterscotch, needs emergency surgery, draining their savings. And then--because disasters strike in threes--an unexpected guest arrives, dredging up old hurts.
As a beautiful blanket of snow transforms the north woods into a winter wonderland, a deep chill settles over John and Ingrid's marriage.
With the holidays fast approaching, their only hope of keeping their love evergreen depends on turning the page on the past and embracing a new chapter of their future.