Castiel is doing much better. He's eating, he's more active, he just looks better and more hydrated instead of the sunken, lethargic thing he was. But he's still super affectionate and cuddly, and gets really upset if he can't be laying on me. He even lays on my feet when I wash dishes. I've always wanted a "Velcro kitty" that wants to be touching you all the time. Now I have mine. :)
Slowly, but surely, Mama is warming up to him.
He's just so gosh darn cute!