There are some dogs who will bond with a particular person in the household, and as one might say become their dog. When I was a young girl of 12 or 13, my mother bought me a little Rat Terrier whom we named Texas. I took this responsibility very seriously. The very first night I put the puppy on my bed with me, and it jumped off and went over to my mother's bed and jumped up there. After returning it to my bed, it did the same thing again. The little puppy had decided it was going to be my mother's dog and that was the way it acted for ever after. I was very mature for my age and not in anyway frightening or overwhelming the dog, it just chose my mother. As I was born a dog lover and this was to be "my dog", this simply broke my heart. I subsequently did get another puppy, a Shetland Sheepdog, who bonded with me just fine, but needless to say, I don't think I ever got over the "rejection" from my little Texas. Our current dogs adore my husband but I am their primary caretaker and they pretty much know that. Luckily one sleeps slapped up against him and the other slapped up against me. I would say they are equal opportunity lovers.