The night without Onyxia

The room looked empty. I think I am used to Onyxia's presence already. I am used to hear meow-ou when I open the front entrance. I am used to hear scratches when I approach my door. Just few days and yet I am already attached to Onyxia. Someone told me that cats normally don't build up relationships with people, they only do with places. My place is small. I wonder if Onyxia remembers she spent some days in a small confinement where she saw many closets and green carpets? Cats have memories I assume so. Another question is that does Onyxia have the same attachment to my place if the attachment is not for me?