The story is actually made up of two threads, each having a long literary history. The second theme is based on the myth of Procris. Ovid wrote that Cephalus had only recently married the beautiful Procris when the jealous Aurora incites him to test her virtue. He pretends to leave but returns in disguise as a supposed admirer. The plot thickens after that, and I will leave it to you to dig out your own copy of Metamorphoses to find out what happens.
Finale actually begins.