Watch: Grey's Anatomy Season 8, Epiosde 8: Soulmates? Tweet November 7, 2011 by Rebecca Martin Related: Grey's Anatomy, Relationships , Jackson Avery , Lexie Grey , Mark Sloan , Season 8 Episode 8 , Season 8 Credit: Hulu The writers brings up soulmates on Grey's Anatomy Season 8, Episode 8, "Heart-Shaped Box."
