Series 5 so far...

OK so here's whats happened so far this series...

Meredith and Derek have decided to move in together, after Meredith finally overcame her fear of committing. George passed his residency exam and can now join the other residents, rather than the interns. Lexie tries to express her feeling for George but he is oblivious. Alex has put his bad boy days behind him and is dating Izzie. Callie think about being a lesbian with Dr. Hahn who has a crush on her, and ends up dating her (but sleeping with Sloane).

Can't wait to find out what happens next!!!