Who is Alice's Mother from Lucky and what is their importance?

Alice's mother is described as a nervous and anxious woman. She is also strict, demanding, and needy. After Alice's rape, she calls for her mother to come get her, and in that moment she wasn't worried about the toll the events were taking on her mother. Soom after, Alice's mother begins taking medication for her attacks. She notes that her daughter's strength and courage influenced her to do so.