Can we blame someone for making irrational choices during emotionally intense situations? Suppose that John was deeply in love with Joyce while Joyce is really using John for his money. It's obvious to all of John's friends, he is being used but he won't listen to reason. Is John to blame or is it his biological makeup to blame (or his environment) ? One can say that there are plenty of people who are able to snap out of these types of situation so why can't John, but I don't think it's that simple.