I'm touchy and sensitive too, but that isn't always without reason. Based on her brief responses and never texting her address as promised, I'd wonder if she really wanted the business. It would also bother me a lot that she didn't have a professional website. If she charges that much she should be able to afford one, and they are just expected these days. Does she have an office or would you be seeing her in her home?

I'd call and leave a message say something like "I'm canceling for now because you never sent me your address, and I'm feeling really uncomfortable about this. I'm going to talk to my regular therapist and see what I should do from here." Then I'd see if I could get another referral.