The Seven Days of Christmas

Trey hates Christmas with a passion. Despite the fact he needs to deal with it because he owns a costume shop, it is an anathema to him because he broke up with his lover on Christmas Day three years ago.
Marty is a bartender at the local bar Trey goes to sometimes to unwind after a hectic day. He's more than a bit interested in Trey, but doesn't know how to let him know, especially since he'd never told Trey he's gay, too.
When Trey tells Marty he's suddenly shorthanded, with a week to go until Christmas, Marty jumps on the chance to get to know him better by volunteering to assist at the shop.
Can Marty help Trey overcome his Christmas phobia? More to the point, can Trey accept that Marty is interested in him not only as a friend, but on a more personal level?