Maybe he likes the softness of the bedding better than what's in his litter box. So you could try putting bedding in there too so that it's softer for him. Also is he fixed? If not then that will most likely help a lot.
Aww, what a sweetie! I had two Californians who had black fur on their noses and it changed shape a few months later. I think it's just part of the growing and developing process, except with bunnies their fur develops too.
My two Californians Romeo and Juliet hopped the rainbow bridge a few weeks ago, but they used to eat the paint on my wall. Half the paint on one wall is completely gone! It's been hard and I miss them dearly, so I'm getting two new buns (lionhead and californian dwarf) to fill a void for me and...