Especially the manager, who also has a daughter, a university student at that. She thought her daughter was no less than Mabel Quinn, so why did Mabel get so lucky as to catch Mr. Kinston's eye? The manager, after all, had tried to give her daughter opportunities to visit when Mr. Kinston stayed at the estate, and deliberately arranged for her daughter to appear before him several times. Yet, Mr. Kinston hadn't even spared her daughter a glance, let alone taken a liking to her.
Therefore, the manager harbored even more resentment towards Mabel Quinn. Now that Mabel was clearly being coldly treated by Mr. Kinston, the manager naturally seized the chance to kick her when she's down.
Mabel Quinn looked at the manager, showing no anger, but said calmly, "If you're not willing to help me gather everyone, then I'll have to call the police directly. When the police come, I wonder how you'll explain it to Mr. Kinston?"
"Call the police? For what?" the manager was taken aback.