I wouldn't get one from there a geuine yorkie breeder who really cares for the breed would not treat you like that
She doesn't sound as if she cares much about her pups or where they go.
Also as others have said if she treats you like that now, if you have a problem with your pup after you have brought him/her home I am pretty sure that she wouldn't give you the time of day let alone any advice!
Sharon,Charley & Melody xx