Then don't think about that one; she suggested two options you might want to consider and you sort of liked the idea of a group? Why not explore that one; exploring does not mean you have to join one; nothing happens all at once, there's a process and steps. Even inpatient treatment, it's not like being thrown into a pool when you can't swim. There's structure everywhere, look for structures you can use to hold on to (side of the pool), comfort yourself with or use as landmarks and move toward.

You asked for an extra session and got it, way to go! You learned about a couple other possibilities to help you in addition to T; not really fair to decide your T does not like you or is angry with you, etc. when she arranged to see you in an extra session? She has to want to work with you or she would not have done that. Take her words as suggestions of ways you can help yourself rather than as how she feels about you.