Which pairings work best?
We’re all familiar with the tale of a man and a woman from two different worlds falling in love — one’s usually a Pollyanna or a goody two shoes and the other’s a bad apple. They usually start out hating each other, but then they just can’t help themselves. Their mutual attraction overcomes their first impressions and they end up together. We love these stories, because we get to believe that love conquers all.
Of course, we never see that couple a few years later, so we don’t really know how things work out. But maybe that’s a good thing, because the evidence suggests that they don’t.