I don't look down on you at all for wanting another dog. I had my dog Zoe for a long time she died at the age of 9 from what we believe was congestive heart failure. When I brought home my puppy Lucy she was a whole other dog. She had never played with another dog before in her life and she played with Lucy. I don't think you are trying to replace her at all. I will always have multiple dogs in my life just because I don't think I could live without at least one dog for a day. Good luck in making your choice..