You've been crying into your pillow for weeks now because he-
Never mind.
Today, you walked into a grocery store and stared at all the people buying broccoli and shampoo and dish-washing liquid. All those people with their own chapters and textures, their own loves and hates and personal heartbreaks, all their embarrassing habits. Mundanely gathered in this over-lit shop... You realize that for this short while all your lives were quietly mingling.
And then your heart sighs with relief because you've done it, finally. You've realized something small but so very important. It's quite simple, really.
The world is larger than your heartbreak.
(You smile because you know that things just might be okay. Eventually)