" It was not mine to tell. He asked for my word I would keep silent.”
“I think you might have broken it upon this occasion,” Plum returned hotly.
“Then I think you know me not at all,” Brisbane countered, his tone deceptively bland. He would put up with Plum’s barbs only so long before he took the quarrel further, and that was not an eventuality I cared to see. “Calm yourself, Plum. If I am not upset, you have no call to be.” I turned to Brisbane. “I understand why you did not tell me. You are a man of your word. And you know precisely when it is necessary to break it. This was not that time.” The look he gave me was mingled gratitude and promise of a significant dose of his attentions later. I shivered a little as Portia entered. "
― Deanna Raybourn , Silent Night (Lady Julia Grey, #5.5)