I guess I react a little differently to this than others. What I hear in your post is that your T is admitting that she has experienced a lack of clarity about who's feeling the anger. She thought you were feeling anger, only to realize that the anger is hers for you. I suppose it's good that she's catching herself and articulating that to you, so as to not add to your confusion--but it doesn't seem to be having that effect.

Ts use their emotional reactions in order to be attuned, and some orientations suggest sharing that info with a client, others suggest it be kept to self. But either way, it's important that the T has clarity about where the felt emotions are coming from. It sounds to me as though she's exploring whether the anger belongs 100% to her, or whether she's feeling suppressed anger in you. When you say you don't feel anger, if she thinks the circumstances would usually lead to someone feeling anger, she may be wondering why you don't recognize an anger feeling in yourself.

If it doesn't work for you to have her sharing her emotional process with you, tell her.