When a Nashville couple gets along so well-at least on record-that they have to write a song about forcing themselves to fight, you know it's not George Jones and Tammy Wynette we're talking about. Thompson Square's Keifer and Shawna Thompson, who've been married 11 years, are in lovey-dovey nirvana on their self-titled debut-sometimes to hokey extremes, as heard on tracks "I Got You" and "Getaway Car." And even when there are rare hints of discord on "If It Takes All Night" and "I Don't Want to Miss You," they're tempered by a resolve to make things right-quickly. The harmony also extends to the music on "Thompson Square," a peppy 12-track set that smoothly straddles the pop-country line with such uptempo fare as "My Kind of Crazy," "Let's Fight," "As Bad As It Gets" and "One of Those Days." Elsewhere, "Are You Gonna Kiss Me or Not" and "Who Loves Who More" follow a twangier path. Maybe one day these two will really fire some "bullets . . . aimed straight for the heart." But for now, Thompson Square is happily and unapologetically heart-shaped.