You need keep in mind that cat is not a human being before you try to understand the behaviour of your cat. The behaviour of cats can not based on emotion and not rational beings. Your cat behaviour change not represent from any anger with you and will not trying to get revenge on you from home or bring new cat into the house.
Stress or anxiety for the cat will cause the negative changes in cat behaviour. Pet owner tend to correlate two unrelated events, conclude that the cat’s feelings toward them cause the differences of behaviour. The fact of changes behaviour of your cat is cat physical anxiety affect from your behaviour and then physiological changes in his body.Cat owner always complaint that their cat suddenly go to a new place to deposit waste instead of his little box.
Medical problem may cause this changes behaviour. Cats are easier to be infected with urinary track infection and painful when urinate. Then, cats will thinking of the pain of urination link with the litter box, so the designated litter box will be no longer prefer by them. You should bring your cat to visit veterinarian for medical check up. Besides that, the changes of certain textures and smell of cat litter you use make them no more prefer this place because cats also have natural preferences for certain textures and smells. In avoiding the litter box, the cat will depostit waste on soft living room rug or bedroom closet.
If your cat doing this, cat owner must not to punish your cat. Cat will not understand and proper way is seek for medical attention from veterinarian. Trying get advice from specialist and friends, switch litters and continuously reintroduce the cat to his litter box. if your cat start use it, reward your cat just like he was a kitten again.
Cats owner need carefully analyse any changes occurred in his life to relieve any anxiety your cat may be feeling. Your cat will feel threatened when some new member visit to your house such as new baby or roommate. If you going to travel from your home for a long time, consider to get second cat so your cat will no spend his day along. He will feel different due to changes around him.