I was in exactly your position a year ago--my sweet Lily that I had adopted from the SPCA ten years ago passed away from uterine cancer. I was devastated. She was my only pet and I am home alone a lot given my husband works a crazy job in law enforcement. I was SO alone and overcome with grief--I not only lost my only baby, but I lost a constant companion. My house became as quiet and empty as a morgue. She was also our "child" given we have been empty nesters for years and our other rabbits had passed. She helped my husband deal with his job too--said that petting her and talking to her before and after work helped him de-stress and cope with his demanding job. He was just about as devastated as I was. At first, he did not want another pet because he didn't want to go through the pain again. Lily was our favorite out of our other three rabbits we had which passed before her; she was just so sweet and special. It's one of the reasons I didn't spay her....her personality was perfect and I didn't want it to change. She was two years old when we adopted her and twelve when she passed so she did lead a very healthy and happy life. However, I swore the next rabbit I adopted would be spayed/neutered so reproductive organ cancer would not take them.
I waited a few weeks and my husband agreed to another bunny because he felt bad for me--and I think he wanted one too! I looked at DOZENS of rabbits online and Precious just stood out to me. I knew she was the one! Young but not a baby (eight months), spayed, litter box trained, and love-able. It was very important to adopt a love-bug bunny because my Lily was one. Precious came from a rabbit hoarder situation and she was rescued by a rabbit rescue. I met her and she took to me right away. She is a dwarf mix, full of energy and just a little thing (unlike my chunky lionhead mix, Lily)--but she's super sweet. NO regrets and she has fit into our lives perfectly. She even has two young guinea pig brothers now.
You'll love having another bunny. It really helped me out a lot. I know it's what Lily would have wanted as she was also a rescue as well. I only adopt rescues. No doubt, Bella would approve of you welcoming another bunny. Keep us posted and good luck!

My Lily below--RIP.
