If you don't love her as much as she diserves to be loved, then maybe it is best if you give her back.
I'm sure you've read about all the risks that come with tinies though. Do a search on here if you haven't. Why is the size so important to you anyways? Rather 2lbs or 18lbs, Yorkies are still tiny dogs!
Did you pay extra because she was supposed to be smaller? Maybe you can get some money back if she is bigger. But you gotta remember, you can't really predict a dogs size. Just like children, I mean just because some kids are born 6lbs and others are born 8 or 9 lbs that doesn't mean they will necessarily stay smaller or bigger there whole life.
I feel bad for the puppy
