You said that she invited you to a meeting. I am under the impression that this is a reference to a session. I can't see how she can be your T and your friend. Is the T part of the relationship still active? It almost sounds like she was your T and then you became friends. What would be the agenda if you had a session with her? (don't tell me but I'd want to know if she had invited me) I feel that sessions are intended to help you with something not just a get together. So, do you have something to work on with her?
I hope you figure out what you want/need to do.