WHITEHORSE The Fate of the World Depends on This Kiss whitehorsemusic.ca Whenever a married couple sings about the “seven-year itch,” there’s a tendency to think the worst: trouble in paradise. But Luke Doucet and Melissa McClelland, the husband-and-wife duo behind this dark and stormy Canadian twang-pop duo, haven’t made a breakup record. Their full-length debut is all about keeping things spicy, and while the acoustic ballad “Mismatched...