Why do you care to this extent about the life she has outside of her sessions with you? You're paying her $$ to focus on you -you are the patient/client. I will say if my husband mentioned that his female doctor/dental hygienist/optometrist shared ultra personal details of her life with him beyond the "yes sorry you couldn't get an appointment in March -we were at Disneyworld and boy was it hot!" I would wonder whether she had a crush on him and whether boundaries were being crossed. I wouldn't make demands -but I might feel uncomfortable especially if he had to see the person frequently. Same with the people we work with - boundaries are important and often someone's partner will notice if a coworker is calling a lot after hours, calling to have ultra personal conversations, etc.
You seem very intense about staying in this relationship, justifying her behavior, justifying your choices. I wish you luck and you seem to know and accept the downsides of being with her. I never thought you expected all to be perfect- none of us do - I was focused on how she treats you and this particular issue.