Sassea, me and my wife live upstairs in my mother Pat's house. Pat has a big Tiger / Maine Coon named Kit Kat that is a big baby and since it was his house first we keep Sassea upstairs with us. She gets to come down in morning when I get her breakfast. She will explore and then race me back up to so she can eat. Three days ago she began to dart out through door that keeps her upstairs when wife or I would come or go. She also began yowling to be let out of our portion of the house. For almost two years Sassea has been happy with the area we live in. She used to stop if she headed through the door and we said her name or NO. Now she quietly sasses (yat yat) back at us and keeps going. She try's to wake us to let her out the door which she never did. When we don't respond to her pleading to open the door she will stand on her hind legs to reach and rattle the door handle. Last night when Sassea wanted out I decided to follow her. She went to downstairs living room and took a bite of a Spider plant. After a couple of minutes of her just sitting next to it I told her we need to go upstairs. She resisted some and when she got to the next end table and I insisted we go she hissed at me. I am trying to understand what she wants and also not get into any habit of arguing back and forth that we're not going downstairs.