Opposites attract, or so the saying goes. This isn't born out by the numbers. Couples typically come from the same social class, religious background, and cultural background. We are defined much more by our similarities than our differences. These similarities can account for the concentration of wealth within certain strata of society, or cycles of poverty that repeat generation after generation.
Marriages wherein the partners are not on the same wavelength do not often work. The majority of things need to sync up, from tastes in movies and food, to finding each other attractive, to compatible hopes and dreams. Being way into BDSM with a partner who isn't at all will be as dangerous to a relationship as harboring dreams of moving to rural Idaho when your partner is a marine biologist who needs to live on a coast.
How compatible are you with your partner? Do you know them well enough to know what it is your spouse finds attractive about you? Do you look for similar things, and thus find the same thing attractive in them? Is it possible you have had it wrong this whole time and think your most attractive quality is actually your number two or three most attractive quality? Take this quiz, and we'll clear everything up.