If you’re wondering why so many couples fight about money, here’s your answer: Surveys of married adults consistently show that opposites attract when it comes to the type of spender you are. Stingy tightwads who just can’t bring themselves to reach for the wallet, even when they know they should, tend to shack up with reckless spendthrifts who just can’t help overspending, even when they know they shouldn’t. Researchers say this is because we’re attracted to people who don’t possess the characteristics we hate in ourselves. Unfortunately, however, even if you hate the fact that you’re a tightwad, that doesn’t mean you’re going to be happy when your mate splurges on a new big-screen TV. And vice versa — the spendthrift may hate their foolhardy ways, but that doesn’t mean they’ll enjoy being tamed (nor does it mean they’ll be happy watching movies on a TV the size of a postage stamp).