I feel like Maxine, as a character, needs a new approach in how she is presented. I assume she was intended to be quirky/eccentric, but she acts like a paranoid schizophrenic (conspiracy theories, conversations with her cat, etc.). She either needs some redeeming character qualities that allow for growth and development (e.g., self-awareness of her actions and how she's viewed, feelings of remorse over the locker, etc.) or, if she is supposed to be that one-dimensional, then her prominence needs to be toned down a bit as she is featured far too often for someone who is essentially behaving like a one-off side character instead of a legitimate option.
No matter how many objects you shove up her butt, she's still currently more unlikable than Kate.