MY cat is mad at me because I had to give her the cone of shame because I couldn't afford the other treatment and now she ran away. I'm so heart broken, I'm about to put up flyers :'(
Happened to my Sim, too! The saddest thing in my opinion was the infinite sad moodlet, but I don't thing I did anything wrong, she just ran away. If you wanna know when/if the pets come back I put my experience under the spoiler (in case you DON'T wanna know ;))