Keep it up! Her behavior shows she is not happy with losing the control over you that she so wants. In fact, I would tell her the MC is off the table. You won't go. Tell her if she ever decides to come back home permanently, fully committed to the MR, then you will consider MC. Until then you will do IC for self improvement.
All of this behavior is classic behavior. She sees you are pushing her away and she doesn't like it! Just stick to your guns. As flaky as she sounds it won't be long before she gets evicted from the apartment for not paying rent. And enabling uncle will only go to the financial well so deep before he cuts her off. Just wait it out.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018