Do you know exactly what you did to rub her the wrong way? Do you have any clues from her emails about why she might have been upset? Also, how did you know she emailed all her colleagues? Did they say she told them not to work with you, or did she tell you, or...?
Not questioning the veracity of your story at all, I'm just trying to figure out what happened.
I think it is possible that you got pegged as a "certain sort" of person by seeming to prioritize aesthetics over drives and temperament. I could see how maybe a working line breeder might infer from that that you don't really know what you want in terms of the latter and may not know what you're getting into. But that's just pure speculation.
I guess my final thought is if you really want a long coat, why would you look at breeders who may not have any?