It does remind me of my first ever cat Tooshy...
He was an older roaming Tom who I took in and fixed up. He went bonkers for liver pate!
The vet adviced me to get in something light for after his neurtering op. I grilled some fish and some chicken so he had a choice. When he came home, he looked so sorry for himself. So despressed! He jumped in the chair and slept and slept... I got so worried! I placed a small dish next to his head with a bit of the chicken, then the fish... no reaction.
Tooshy didn't even look up. I even tried to put some in his mouth to get him to eat. He just kept sleeping.
Then, in desparation, I got the pate out. I walked in the room and his little nose started to twitch, then his head lifted. But the time I got to the chair, he'd jumped up and was meowing for England.