My heart is breaking for you. She was a beautiful girl and it sounds like you and her had a wonderful bond. Keep her memory close and if you are able to get her sister I think you should because then you will have a small, physical part of Bella still with you. She would never replace your angel but she will help heal your heart. I am so frightened to get my Phoebe spayed...I've been putting it off out of fear. God bless you Sweetie and RIP Bella