Hey there. I am sorry for your loss. I too had a little bunny friend . His name was Mister Bungles. I adopted him from a local school and he was my first roommate. He liked carrots and he took a shit everywhere he went. That's what we had in common, we both liked taking a shit. But for him I think it was his special way of showing his love. Now I too take a shit to show others I love them.
I hope you find some peace. As I am sure your friend will find the same, in knowing that should his time draw to a close, the last moments he has to spend will be with you - his best friend of all.
- Aussie