David Redington's expression was indifferent with a hint of seriousness. It was clear that he was focused on the matter, not the person, presenting a business-like demeanor.
"According to yesterday's filming plot, Grace Smith has already become Alan Moore's lover. Even if it's a secret affair, with Alan Moore's personality, he wouldn't possibly still act as originally set in the script, where he kisses Daisy Smith just because of a close encounter in the elevator.
Don't forget, in the script, Alan Moore develops an interest in Daisy Smith because, after many years without intimate interactions with women, he experiences a sudden attraction in the elevator. He finds the scent of Daisy Smith's hair refreshing, and after she voluntarily hugs him, he responds. This marks the beginning of her attraction to him.
