As others have said...perception and expectations. I see a lot of "I" and what you "think" and .... are projecting onto her. You do not actually KNOW the why behind what she is doing. "Our disease is one of perception." And we are selfish and default to the I worldview.
Sounds like talking to her and sharing your feelings - now, do put those in the I as you CANNOT "take her inventory" - is important, and then use the information you get back to make decisions and keep moving forward.
I struggled about breaking up with my first sponsor for weeks, and even began working with a new sponsor. I chose just one, once I was sure that my motives (not her intentions!) were sound and based in spiritual fitness and a desire to keep growing. You cannot put your choices or feelings onto another person.
Good luck.