Collisions, collisions, collisions.

One meets three, two is enough to keep searching.

Two meet four and it's all they see before they part ways years later.

And then, in the glimpse of a second a big figure finds a rather small one, and they fit perfectly. No more collisions needed, they make each other balanced, complete, whole.

And for once in a very long time both figures don't have the need to feel desperate, the need to keep up the collisions until they find what they were looking for, at last they have found it.

They remain still.

And that could last for seconds, weeks, decades, centuries; one can only wonder. But as long as they are together, nothing else will matter.

And that's just as romantic as chemistry gets.