Erica Ridley said this quote

He leaned back. “What, may I ask, is the nature of our business?” She inclined her head. “Just so. It came to my attention earlier today that you had canceled the seventy-fifth annual Christmas Eve ball. I would have called upon you immediately, but I’m afraid a prior engagement tied my hands until this very moment.” He tried to make sense of her words. She was apologizing for not descending upon him more promptly for a meeting he’d never in his wildest dreams anticipated?