Everyone has deal breakers.
They're the unalterable qualities in your prospective partner that eliminate the possibility of a happy relationship. Some are shallow: gnarly feet, freakishly small hands, a CD collection that's a little heavy on the Limp Bizkit. But others are critical indicators of compatibility: he doesn't want kids and you do. Or his deeply held religious convictions don't mesh with your own.
But one potential deal breaker defies categorization: bad sex. Is it a shallow concern that shouldn't matter if two people care about each other? Is it the ultimate indicator of compatibility because it's so primal? Or is it not a deal breaker at all because, with enough time and effort, it can be fixed?