Seniors, I can't figure out how to maturely handle this situation. Can you help?

She does not respect you because you are afraid of her. The fact that you feel as though you have to relate to her in a way you consider "normal" is a sign of weakness to her. You have to be courageous enough to either confront her by asking her opinion of you, or just ignore her. Nothing is likely to change in the long run anyway, but you might feel better.