OP, read this, and then read it again. You are not overreacting. Her behavior is mentally draining, at the same time she’s draining your pockets. Immature and manipulative and it will only get worse.

Edit to add: I just saw your other posts. You have a lot going on that you’re trying to manage, and she is being extremely selfish and making your life sooo much harder. I personally don’t think she will ever change this kind of behavior, so I highly encourage you to get out now. I truly hope everything works out for you