Still reeling from a crisis of faith, April is unrecognizable from her usual bubbly self, spending her time drinking and engaging in a casual relationship with intern Vik Roy.
Harder, Better, Faster, Stronger - Grey's Anatomy Universe Wiki
Meredith shows her growth as a mentor by officially including Jo on her research paper and encouraging her to use the name "Dr. Josephine Brooke Wilson" to move past her traumatic history with her ex-husband.