It does appear that Nemo is out of hibernation. He has greeted me grumpily each morning preferring to hide after I come into the room. But he watches as I prepare his humidifer.
I believe he is readjusting to Brian and me although he has somewhat severe post-hibernation PTSD. I would guess it's sort of like being in the quiet for days and suddenly hearing Black Sabbath playing next to your head. He is curious about Linus which may help him to ease out of his anti-social grumpiness. It was nice to see his face in the sunshine today.