Once you give-in to a dog, there's no going back.
Lady Magnon is now obliged to share her sofa with Bok; neither one will budge.
HE thinks it's his sofa, and SHE thinks it's hers. Frankly I just let them squabble about it, and ignore them.
In the evenings, I now sit on my uncomfortable, shabby, wing-back chair, but guess who takes over when I go to bed?