| in S1 he was the more fun Derek, I miss that side of Derek in S2, I hope we'll see him back in season 3...
I think Derek might not have told Mer about Addison straight away because Mer would break it off, not wanting to be the mistress or not wanting to make herself fall for him even more. But I do think that Derek should have told her at some level, when he showed her his trailer could have been the right time to tell her, or at least shortly after that...
As for his decisions about Addison and Mer... I never really had expected him to pick Addison, especially for the way he behaved around her and the looks he kept sending Mer's way.. Those were interesting decisions made by Derek |