...this means someone else and better is meant for your spot.
I've had to give courtesy interviews before when I didn't get a warm fuzzy from the person and I've had the same done to me as well. Maybe she felt it wasn't a fit and didn't know what to say.
Nothing drives me more than being called a baby sitter so I understand. Maybe she is changing her mind to a center but went through the interview. Who knows what went through her head, it's hard not to take things personally when you put so much into your daycare ((Hugs))