Much sadness

Billy, the cat in my picture, is going to have to be put to sleep this weekend. He's gone downhill really fast with the FIP. We brought him to the emergency vet this weekend, and he said that Billy is really beginning to suffer now, and his liver functions will shut down within the next couple of days. The poor baby. We are all so very sad. My sister pretty much has cried for two days straight (he's actually her cat, although he did live with me for three years when she and I were roommates, so it's like he's mine). Why does this have to happen? He wasn't very old relatively speaking -- he was about 11. Considering that my cat, Bubbles, is 16½ and still as bitchy and slashy as ever, he seems so young. Poor thing. I'm praying for a miracle. You should, too.