The fact that she didn't smile and was interrupting you might have me questioning whether or not I want to work with her.

However, to be completely honest, I'm pretty sure that would be me looking for daycare for my daughter. I get nervous/anxious, so I may not smile due to that and I know I find myself interrupting people when I am anxious. Definitely not on purpose! I am one to have my list of questions, make sure they were answered even if I shot them out instead of working them into conversation lol.... This basically happened when I was looking for a daycare to put my daughter in part-time when she was just a baby... I am sure they thought I was annoying lol... but I know they are happy with me now because I am extremely organized, always communicate with them about any issues that may arise on my side or theirs, and I am very pleasant!

My suggestion would be to set up a second meeting and see how that goes!