catcrazy
An informally diagnosed psychological disorder, falling on the obsessive compulsive spectrum, characterized by an unremitting fixation on anything related to felines, either wild or domestic.
My elderly catcrazy aunt constructed a complex tunnel system inside her house by carefully arranging everything she had hoarded over her lifetime, solely for the enjoyment of her cats!
Catcrazy
When a person loves cats so much, they start believing they ARE a cat.
The boy was catcrazy. He often meowed and purred, and he hissed at dogs. He climbed fences and trees, then needed the help of the fire department to get down.