From a game of Scrabble at home to a round of mini golf, many date nights and the survival of relationships are centred around healthy competition. A study has revealed when it comes to these competitions, there may be something solid in the old “happy wife, happy life” adage. Scientists found women concentrate harder when competing against strangers than their romantic partners. Yet, in a surprising finding, women are still more likely to win when playing against their partner. “Their male partners may be… avoiding potential relationship conflict by allowing their spouse to win,” said Shuyu Jia, lead author of…