I'm sorry to say this but if that's her atitude at spaying then i HOPE the breeder will not give her the dog and a RESONABLE owner gets her.

I really would'nt trust a {BREEDER} that is selling mixed dogs anyway there really NOT a breeder.
It's one thing if it was a resue or foster but a real breeder selling mix dogs sounds like a puppy mill or back yard they cal themselves breeders But there FAR from a breeder.

Ask her what she's going to do when she has 8 dogs running around the house because she is now a backyard so called breeder herself.

Sorry but people who are like that DO NOT DESERVE A DOG.