In season 11, Meredith was left without a best friend Cristina Yang who moved to another country. Christina left her part of the “Grey Sloan Memorial Hospital” to Alex, and he feels obliged to look after Meredith. Jo, Alex’s girlfriend, is very annoyed by the fact that they spend a lot of time together. She thinks that their friendship can become something more. Jo has every right to worry about, given that Meredith has a difficult relationship with her husband Derek Shepherd.