Why did Mary Ellen not mention john curtis in the last few shows she called other kids names?

Mary Ellen may not have mentioned John Curtis in the last few shows for various reasons, such as wanting to focus on other children or perhaps feeling that John Curtis was not as relevant to the current context. It's also possible that she was trying to avoid singling him out or was simply following a narrative structure that didn't include him. Additionally, it could indicate a shift in her perspective or relationship with John Curtis.