As the news that Megan is alive starts to sink in, Nathan slowly wakes up from his daze. Elated, he picks Meredith up and spins her around. Suddenly, he remembers their own fledgling relationship, and apologizes, but she stops him. 'Don't do that, don't apologize. If this were Derek, I would already be gone,' she says, and tells him to go to Megan. Watch this scene from the Season 13 finale, 'Ring of Fire,' and don't miss Grey's Anatomy THURSDAYS 8|7c on ABC.