Josie, I understand your frustration. This is a great, yet common question. I applaud you for a desire to stay respectful. This is the most important. I believe there are several reasons this could occurring, however the behavior needs to be redirected.
First, it sounds like it could be a communication consideration. She may not understand how to communicate. Not only a communication concern, she may not know how to communicate to different motivation and behavior styles. This can be handled through training and mindset change which could be championed through your organization. We actualize various DISC assessments which make significant improvement. These would not only help her communicate, but they also would help yourself as well as others communicate more effectively with her as well.
Second, it could be a management style. One possible solution is to speak to someone who you feel comfortable with confidentiality. This may bring the issue to someone's attention who may have resources to help the situation.
Third, if you feel comfortable, sit down with her and just let her know your frustration. Approach her and let her know you are excited about helping in any way you are able. It is highly probable others in your organization have the same issue. There also may be someone who may be better suited to have that conversation.
I believe that these issues are primarily communication concerns. Once we are able to solve the communication difficulties, often this solves many other issues as well. There may be issues under the surface. There may be a need to have a more in depth conversation to isolate the issues.
Josie, I would look forward to talking to you further about your situation. I would love to be able to help in any way I am able.
Business Coach Bob Reish