wow! That is weird. She could have just told you that you're not what she's looking for and move on. Rather then tell you that she doesn't want her child exposed to anyone!

I wonder if she's had a poor experiance with a caregiver going to or inviting their friends over and disregarding the kids because of it. Sounds like she's been treated badly and is now on the protective.

Move on to the next one... that's what I think.