Well, I will not be getting that puppy.
I was supposed to hear from them yesterday to make an appointment to view the pup. I called the owner of the rescue place, and she gave me bad news.
Apparently last night, that puppy died.

The woman said that she had been fine all day. She had been playing with her siblings, as well as eating and drinking normally. But last night I guess the puppies went to nap and they noticed she wasn't breathing. They don't know why she died, but they aren't adopting out the siblings until they can be sure they won't do the same. She said that all the tests from the vet from over the weekend came back normal and she believes the puppy might have had a weak heart or something.
I am upset. I wanted to meet that puppy so badly. There's another that we're going to hopefully meet soon and hopefully nothing will go wrong. But in the meantime, I am more than a little heartbroken.