Sylveon: What if Saga

What if Eevee had died the day she fought with her worst enemy Riolu at the beginning of the story? Eevee and her friends would have never met except for Sylveon. Sylveon would have never fallen in love with Eevee. And Sylveon would live his life while the loss of his friend plagues his mind every now and then. This is what would have been if Eevee had died.