She played you and she played you well.... She is clearly in the wrong and to cover it up, she is putting the entire blame on you. You had no obligation to care for her but you did. Yest, she convinced you that you stoping that behavior was wrong and you cried? She is good, she is very good.
Please open your eyes and cut all communication with this manipulative person. Unless, you like being mistreated and disrespected, and no i am not being sarcastic. Some people do actually prefer that.