l dont blame/hate head maid, what she had done is right. in a way, she is looking after lbee in her own way. what she had said is right, a duke marrying a common maid would only incur ridicule from other noble, let alone from the royal family. in the end lbee would be the one who will hurt the most.
she understand Ale intention, but she is doing what is normally "right" thing to do to protect them both from suffering
if it were me, l would promote lbee from a normal maid to special or personal maid.