The reason I know what we are to each other is because we fight freely and almost constantly, about even the smallest thing. In fact, once we didn't speak for an entire week because he didn't like the way I loaded his dishwasher...I can't decide if we're exact opposites, or somehow exactly the same except for minor cosmetic differences. I do know that all of his friends hate me and all of my friends hate him. We drive each other crazy in ways that nobody else can even touch. We never bore each other. And we both realize what a rare thing this is.