There are two sayings that go around, that seem to be almost contrary to each other: "birds of a feather flock together," and "opposites attract,". One seems to be saying that relationships are based on commonalities, while the other seems to suggest that people who are very different find themselves drawn together.
According to a lecture I had in first year psychology, the former is true of long-lasting relationships; the latter more of short, more spontaneous ones. That doesn't mean that you have to be similar to have a relationship with someone else; it just helps sometimes.
But imagine if there was no-one like you. In the world, you were completely unique, in at least something; you couldn't relate to anyone else about it, because it was just you. Then, you'd feel alone. And we're social creatures. Some people try to fight that, but it's innate. We're designed to be together, not apart. Not by ourselves. Interdependent, not independent.
Just a thought I had. Which actually gives me an idea for a next post, or perhaps a mini-series...we'll see what happens.