The planets in the universe.
And the only thing we have in common now is that only one place. And the last place that I ever saw you again. But this time, I won't run up to you with open arms and neither would you say hi if you see me. Because you like running and have ran forward - chasing another.Because although we are on earth, we are now like two different souls in different worlds not having anything to do with each other. And like the planets in space, we will only bid hellos and goodbyes when our planets are spinning and we happen to pass each other on the axis.
But like how they pass each other, its akin to the time we have to even bother to say hello. And who knows when will the next time be when we meet? Because to me, meeting you is like being a planet spinning around the axis, waiting to meet another planet in the universe. And talking to you is like waiting for candies to drop from the sky.
And we hang on to these memories so tightly for the only reason that memories won't change even when everything does. And for times like these, you'll be glad you can't time travel and change the past.