(RNS) — When Katie Frugé and her husband, Lafayette, decided to get married in 2007, they were 21 and did not know what they did not know. “We were too young to get married and too young really to care,” said Frugé, who is now director of the Center for Cultural Engagement for the Baptist General Convention of Texas.  For guidance, the young couple turned to “The Five Love Languages,” a popular book by North Carolina author and pastor Gary Chapman. First published in 1992, the book explores different ways people express love — words of affirmation, physical touch, quality time, acts of service and giving gifts — in hopes of helping couples find happiness. The book claims understanding each other’s love language can help create healthy marriages. Frugé recalls thinking the book held the key to a bright future. Katie Frugé. (Courtesy photo) “We thought, we’ll just learn each other’s love languages and everything’s going be hunky-dory,” she said. “We’re not going to ever have any fights and we’re both going to feel fully …