Yes, cats can get lonely. Signs of loneliness in a cat include decreased appetite, excessive meowing or vocalizing, increased sleep, hiding, and destructive behaviors such as scratching furniture. Cats that are not getting enough attention or are not being provided with enough stimulation can become lonely and depressed. Providing cats with companionship, playtime, and interactive toys can help reduce their feelings of loneliness and can help keep them mentally and physically healthy.