Cats are individuals, but they still like to be played with from time to time. A bored cat may show signs of depression just because they lack mental stimulation. Buying your cat a toy, a new climbing tree, or a puzzle feeder can do wonders for their mental care. Spend some time playing with your cat as part of their new routine. Maintain a routine with added toys, snuggles, and treats to make your cat feel like they can overcome their grief.