In this episode of Greys Anatomy the following happens. We see Christina and Callie moving into their new apartment. Hahn asks Callie if she wants to go out with her on a proper date and she agrees. Meredith is given one of her mother's Journals by Derek. She is freaked out that he found it and at the end of the episode Meredith and Christina read it together. They are waiting for the results of George's intern exam. Callie tells Bailey about her date with Hahn and Bailey is left completely speechless. Christina discovers a part of the hospital which she has never been to before. It's like entering another world. Bailey sees Hahn staring at Callie all lovey dovey and just has this weird look on her face as if she's saying am I seeing what I think I'm seeing.
George gets the test results and we find out that he passed. Hahn and Callie have their date.