Jo (Camilla Luddington) finally got answers about her family history on Grey's Anatomy last night, but they were not the answers she was expecting.
All she knew was that as a very young baby, she had been dropped off at a firestation, and from there she never had the family she always dreamed of as she was shuffled around orphanages and foster families. After a DNA test and some sleuthing, she found the woman who was likely her birth mother, and she took a trip to Pittsburgh to find her.
When she found her living in a nice house with a whole family, Jo was angry, but she had no idea what she was about to learn. Her mother had been date raped, had a baby, and knew she couldn't handle raising the baby who reminded her of the most traumatic moment of her life, so she gave that baby up and never looked back.