Hero & Leander

This is an amazingly (and wonderfully) short myth.

Hero is a priestess whom Leander is in love with. Every night Leander swims across the river to see her, and they spend time together. One day the current was too strong. When Hero realized Leander had died, she killed herself.

The End.

There's not much to say about this myth. I think the world would've managed just fine if it had never been thought up.