About Erica...her storyline isn't over, obviously. I can see Erica filing that complaint in the future, like near the end of the season. We won't see her, she'll be the bitch and that'll give the viewers some closure with her likable character. We're all gonna hate her then. With the season premiere being all about Seattle Grade's performance, I can imagine the season finale being about Seattle Grace's survival despite Erica's complaint about Izzie's crime.
Also, the way they ended this episode clues us in that Izzie may be going crazy...It's one thing to see him everywhere...but to hear him talk? Hmm...
















