Be especially careful IN WRITING, but even on the phone, she could record you. As soon as she throws out an "I don't feel safe" line to you, and you let it go unrefuted or even just some general "validation" response ("I understand that you feel that way,") you can be screwed, legally. Like I said, I've seen it happen.
The best defense against this is to DOCUMENT the things that she has done -- or will do -- that would indicate that she DOES feel safe with you.