Some of the cats have been snuggling up to Harree more frequently since his illness.
In particular, Miles has been showing extra affection toward Harree. He nuzzles him, and then lays down next to him.
It may be Mile is taking over the position of the “big boy” in the house (from Harree, who is now one of the smallest), and he’s become protective over Harree like Harree used to be to other cats.
Miss Melody and Mama Meredith are also often seen with him.