Lizzie's Links
As it says in Maddie's portion, Lizzie is kind hearted but too weak to stand up for herself. Maddie does not hate her and she does not hate Maddie, but their relationship is complicated.
Lizzie is the lesser of three evils, although she could definitely be seen as a complacent bystander to the verbal abuse. She has no ill will towards Maddie and even confides in her, but she is too used to Avril's tyrannical reign to be opposed to it.