My girl, Oreo is about a year and 3 months old. Her sister died of a respiratory issue early January. Since then I have gotten two more rats so Oreo wouldn't be lonely. The rats got along and have been living in the cage together for a month now. Oreo had signs of a respiratory infection so I took her to the vet. Its very early on so shes on some medication. She doesn't cuddle with the new ratties anymore though and instead sits on the otherside of the cage. Is she trying to stop them from getting sick or just being a grumpy old lady?