You are doing the right thing by asking how to proceed with this situation. Although it sounds very complex and uncomfortable, I have a recommendation for you that I hope will help.
My strong encouragement is to plan an outline for your next session. I would explain exactly what you did here and give details such as what was said and how you heard it. I would try to explain this in a way that is not accusatory, but clear and direct. “I” statements rather than “you” statements tend to work best.
Talk about the fact that therapy has become unproductive because of these feelings, and that you wanted to bring this to her attention.
This gives the therapist a chance to hear the problem and try to either account for what has happened and correct it, share a different perspective of those encounters with you, or perhaps work with you to move to a deeper level with therapy. I cannot know what direction it will take, but talking to her about your feelings is essential for either working through the issues with her, or providing some degree of closure so you can successfully end the relationship and move on.
Finally I encourage you, if you do leave, to try new therapists and explain your experience to them. This gives you the opportunity to identify your needs while deciding who best to go with.