I remember that conversation days ago and it made me wonder about her background. Reading this comment, now, brought me to think that she probably is from Puerto Rico. Why? Because, and I am not making pejorative statements here only speaking as a student of linguistics, people from Puerto Rico are known for their high speed speech style. In the northeast, it's common and when I lived there I thought it was normal and feared I would never be able to learn Spanish if they went that fast! I didn't have that issue with French.
Then I moved to Southern California and realized I could make out what the Spanish speakers were saying. At some point I was at a comedy night club to see Jerry Seinfeld and one of the earlier comics was a Mexican guy, said he was from Tijuana, and he told some jokes about that. The one that stood out to me was the one about him going to NYC for something and he was blown away by the Puerto Ricans he encountered around the city. went something like this...
"So, I'm Mexican and I think I speak Pretty good Spanish, been speaking all my life. But one time I went to NYC and I was on the subway and some Puerto Rican lady had a bunch of kids with her and they were running around so she yelled at them to calm down and all I heard was, 'RRRRRRRRRRRRRRRR!'"
It made so much sense to me about the dialectical difference in speech patterns. Part of the Puerto Rican dialect is the rapidity of it. She probably has to slow down a bit to make sense at all for a lot of people.
That being said, I can understand her but I'm familiar with several language speech patterns and some vocabulary.