Sounds like you were her main person. I think animals care for their families, but sometimes they seem to have a person who they relate to the most.
I had a poodle when I was a kid. He was supposed to be purebred, but we think he might have had terrier mix somewhere along the line, so he looked a little different from most poodles. Then when I met my now-husband, I saw pictures of his grandparents' dog they had when he was a kid and he was almost an exact match. We think maybe they came from the same breeder, but my husband can't remember exactly where they got him from, so we aren't sure.