Bluemoon6,
I think the difference between "ability" and "capability" is meaningful. And she may have said "the capacity" but I heard it like you did. When we talked about it and she clarified, it was fine. She actually reassured me that I was correct in thinking that as a T, she is very strong (I say sturdy) and can handle anything I bring in with me. It is reassuring and comforting to me when something like this is clarified. Relieving too.
It is actually meaningful to me that she is spontaneous, real and in-the-moment. To be otherwise would kind of contribute to or reinforce my idealizing, I think. And, as it is my goal to be spontaneous, real, and in-the-moment with myself and others, it is good to see that it is not a flat terrain. Hills and valleys are real but don't have to be avoided. In fact, they can't be avoided if I want to experience a full rich life.
Difficult sessions like these are so interesting because there is so much to explore and learn.