Our mini lop Missy would only poop and pee in the litter box, inthe cage,? or on my bed!? LOL?? The explanation why she was doing thaton my bed was that it was so permeated with my scent, that she had toassert her control over the situation by leaving her calling card(s)
This explanation came to light, if I recall correctly, when Pam Nockwas explaining to someone why her rabbit was using their sofa for atoilet.? Pam's reasoning seemed to apply quite well to my situation, aswell as her recommendation to cover the furniture with some cover thatsmelled less strongly of human.
When I covered the bed with an old, not used in?a long time, blanket,the peeing stopped and pooping diminished.? Haven't attempted anythinglately to see if there has been any change.
May work for you, ?too.? Worth a try, I would think.
Buck