I think Addison has somewhat come full circle and realizes the pain her infidelity caused with Derek and her marriage as well as the relationship with Mark. So when Izzy revealed she had sex with someone she shouldn't she got it that it was "off limit" sex and probably realizes it is George and rather than keeping her mouth shut she is trying to help Izzy benefit from her own mistakes. I didn't take it as Addison being judgemental so much as don't go down the same road I went down and ruin relationships because she ruined the friendship between Mark and Derek as well as her own marriage.
I wonder if Mark will fail Addison and cause her so much pain she will have to leave Seattle and that will be how she spins off to her own show??
Does anyone know who the actress is playing the Jane Doe pregnant woman? Wonder what she really looks like? Will there be some sort of deep relationship develop between Alex and the girl because he isn't drawn to her physical appearance but gets to really know her then when she gets redone and is possibly pretty he will already have feelings for her? Of course just when he is in deep for her and the possible child the real spouse or boyfriend will appear and yank his heart out and turn him all cold and shallow again.
Surely they won't make Mark chief, that would be just stupid!