Someone who has been a real ally of yours may turn on you today for no apparent reason. Your first inclination is to ignore the betrayal and just continue on in the same manner. Or, you might react defensively, fearful that their lack of support could be detrimental to your cause. However, a third response is actually your best bet. Uncover what caused the shift in the other person's thinking and then see what you can learn from your new perspective. Incorporating more points of view into your plan helps to ensure its success.