Valentine\u2019s Day: Love it if you receive \u201cthe perfect gift\u201d. Hate it if you don\u2019t know what gift to give or where to find it. If you\u2019re the latter, it\u2019s not all your fault, says Adrian Drury at Ovum: \u201cYou may not know what to buy your loved one, but your retailer does.\u201d As a game-changer holiday, Feb. 14 poses a double-edge relationship sword for retailers. Fail to help a consumer express their love, and that consumer will not love your brand. Why is this so difficult? Because of a sea change of customer buying behavior, says SAP\u2019s Jon Wurfl. Consider 37% of PriceGrabber\xae Valentine\u2019s Day Shopping Survey respondents who shop online or via mobile phone or tablet. And gender, age, generational and ethnic preferences of each customer, plus brand reputation word-of-mouth on social media. If you aspire to author Becky Carroll\u2019s gold standard - the Customers Rock company - pour a cup of Joe, Earl or OJ and join us for a Valentine\u2019s Day Post-Mortem: Are you a retailer we love to love?