Update: My T moved my friends appt to Friday and kept me for Thurs at our regular time. He called me at home tonight, 6pm. Chatted for 13 minutes. He asked me how I felt about it and I was totally honest and said I wished I had never given him her number. He said he hadn't encountered this issue before but he totally understands.
He said I need to tell her not to talk to me about him. I need to set those boundaries.
He also mentioned that he thinks she won't be going there 'for too much longer'.
sigh...so happy he called and all is well in the world......today