The question of whether similar or dissimilar personality traits are a source of romantic attraction and marital satisfaction has been debated for years. One thrill-seeking couple had their first date at an Amusement Park, where they rode a 325-foot roller coaster 12 times. These included:Openness to Experience vs. Close-mindedConscientious vs. DisorganizedExtroverted vs. IntrovertedAgreeable vs. Calm and RelaxedThe surprising finding is that, whereas similarity of personality traits resulted in more marital satisfaction in the early years, couples with similar traits reported less satisfaction in the middle and later years. They are the same birds of a feather, but they are flying together to unexpected places in very different ways.