In addition to the insightful critiques from Troy & Christi, there is this: attraction and love are inspired by intangible factors that are difficult to describe and are nearly impossible to measure. We all know the phrase that comes up when we're talking about what attracts us members to the opposite sex, "I'll know him (or her) when I see him (or her)." These intangibles outweigh most any other objective factors when we think about to whom we're attracted. That's why we sometimes find ourselves entangled with someone who really isn't a good match for us. It's chemistry, and as anyone who survived high school chemistry lab can tell you, sometimes experiments go well, but often they're a disaster.