The beast has gone mad

Harley has been looking forward to seeing Bree being stomped by that big mountain golem but just as she was anticipating the beast to stomp on Bree, she noticed Yakov pushing her behind a big boulder before running away in the opposite direction —— her face went slack as her entire body froze in surprise why was Yakov trying to save that bitch? Even if he was doing it just for show, wasn't it too much? Was there really a need for Yakov to pretend so much for the sake of the Queen? But why? Why did he care about her so much?