I have also heard that it is very typical that a female yorkie puppy will bond with the man of the house first. And the same is true for a male yorkie puppy to bond first with the female of the house.
My Suzi just has my son and I , howeverm when my brother comes over she can't get enough of him! You are doing all the right things for your little puppy! I hope Minnie is ok and will soon start eating well.