Signs Of A Lonely Pet. While a change in our cat’s behavior can be the result of boredom or loneliness, many of the signs on this list can also present when your cat is suffering from a medical condition. To rule out the physical angle, take your cat to the veterinarian.

This behavior is abnormal and can be a sign of a lack of attention or worse. If you notice that they are squatting and spraying away from their litter tray, this is their way of telling you that they are bored and lonely. Dogs use their voice to communicate, and a lonely dog might bark, whine, or cry when left alone.