She always pees in the litter box. Had him longer than my husband. I have no clue what could be causing this behavior. While cats often love tight spaces, this may not work well for litter boxes. Gives cat up which I can't see happening. We all adore our cat, but do get very frustrated when he marks around the house.
Really at wit's end if it was my cat I would be taking to vets getting advice doing all I can to have a happy well balanced cat!!!! An infection will cause him pain and he'll refuse to use his litter box. I sprayed gallons of Febreze into the air. You can use this to streamline signing up for, or signing in to your Hubpages account. This is usually an immediate solution to the problem, and helps keep the cat population under control. Never done this before!
In addition to adding a litter box, some people have had success with using Feliway. A cat's sense of smell is much stronger than ours. Eventually this and the treats made the correct impression, and she always used her litter box after that. This is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. Moving to a new house or the addition of a new family member or animal especially another cat can cause anxiety. The urge to spray is very strong in an intact cat.