It is very difficult for me to say anything about a patient's recovery unless I meet him / her in person. Therefore, the question regarding her recovery status will be difficult to answer.
Patients with bipolar disorder experience a lot of erratic moods, which can be stressful for the family. However, it is important that the family members remain calm, understanding and supportive. They need to give full emotional support to the patient, which makes him / her feel understood and cared.
Remember that a lot of her behaviour would be a part of the illness, so her remarks and actions need not be taken personally. The best would be to just listen without reacting negatively to it.