The Heart of St. Nick by A.D. Ellis

Hayden Green is the epitome of a cheery, generous, small-town guy. He keeps himself busy in a tiny railroad town tucked in the hills of the Midwest by helping others. If he also finds himself wishing for a tall, dark, and handsome man to waltz into town and sweep him off his feet, who can blame him?
Gannon Snow closed himself off to emotions and connections a long time ago. He’ll head back to his late grandfather’s beloved holiday town, but only to sell the old man’s house and store. He has his own business to run and no time for feelings. Much to his chagrin, Gannon gets caught up in nostalgia and finds himself mesmerized by a happy little holiday helper.
Hayden and Gannon share an instant connection, but Gannon isn’t staying and Hayden isn’t keen on a broken heart. However, the universe—and maybe some holiday magic, which Gannon most definitely doesn’t believe in—has a different plan, and the men find themselves smack dab in the middle of a small-town Christmas romance.