You're not very similar in the ways that you meet the world, but your differences are complementary, and if you can learn to appreciate them as such, you could really have a dynamic and mutually satisfying relationship. Each of you brings a unique gift to the relationship that helps you both to achieve your goals. Your partner is the idea person -- the energetic one who's not afraid to take risks, get competitive and get out there to get something done.
You're more into calculated moves that ensures success. So why not blend the two styles? This applies to the bedroom, as well -- your exuberant lover wants to try every position in the book (and even some that aren't in there), and you bring your steady hand and calm, studied approach to really take you both to a new level of intimacy. Your lover's energy and optimism helps to boost your spirits, as you occasionally tend toward depression or pessimism. If you can appreciate your differences, which is likely, you make a great, dynamic team.