What goes around comes around. Season six had Shawn (James Roday) and Gus (Dule Hill) joining a Bachelorette-type reality TV show, much to Juliet’s chagrin, in “Shawn and the Real Girl.” The tables turn in “Juliet Takes a Luvvah,” when it’s Juliet’s turn to try out the online dating scene by going undercover in search of a killer, which doesn’t thrill Shawn at all. Making matters worse, Gus joins the same site in search of his soul mate.