I think McSteamy is supposed to come back. I thought Eric Dane was signed for 6 episodes, but now that I see Denny is supposed to be here that long... I'm wondering if I mixed my 6s.
I must be the only one that got the feeling that Derek was actually a little disgusted by Meredith's confession. I kept screaming at her to NOT share that little tidbit, but she did it anyways, darn her! Just the look on his face and the way he backed up a little really made me think that her neediness was really a slap in the face. It puts her in an entirely different light in his eyes and I think it made it easier for him to then try to work on his marriage. No more guilt.