We might not know we are seeking people who best enrich our lives, but somehow on a deep subconscious level we absolutely are. Whether the bond is temporary or permanent, whether it succeeds or fails, fate is simply a configuration of choices that combine with others to shape the relationships that surround us. We cannot choose our family, but we can choose our friends, and we sometimes, before we even meet them.
Plainly it isn't an exact science, despite it being a complex interaction of micro-decisions and corresponding thought; perhaps it doesn't always work and we pass by some potential soulmates like the proverbial ships in the night, never quite connecting. Then again, perhaps the system is tenacious and continues to run like a computer program on infinite loop, so that if at first you don't meet, you are drawn back together for another try.
It's why I get miffed at all the dashing around in recent zombie films. It completely misses the point; transforms the threat to a straightforward physical danger from the zombies themselves, rather than our own inability to avoid them and these films are about us, not them. There's far more meat on the bones of the latter, far more juicy interpretation to get our teeth into. The first zombie is by comparison thin and one dimensional and ironically, it is down to all the exercise.
Ultimately, we are all products of the experiences we have and the decisions we make as children, and it remains a peculiar detail of human condition that something as precious as the future is entrusted to us when we possess so little foresight. Perhaps that's what makes hindsight so intriguing. When you're young the future is a blank canvas, but looking back you are always able to see the big picture.
Remember when only a few people had mobile phones. Generally regarded as an object of derision, you would occasionally see business types clutching those ridiculous grey bricks to their faces and mutter to yourself 'what a prick.' Nowadays, an eyebrow hardly even flutters when we see a ten-year-old child happily texting away. You probably wouldn't notice anyway; you'd be too busy downloading an app that could definitively pinpoint who it was that had just farted in your tube carriage.