Jack strokes her neck and shoulders softly with his hands and fingers, repeating her words: "So bad?" while he ponders their meaning... for a second there is silence, while his thumbs follow the muscles right and left of her spine with soft pressure: "Let's say... I am a passionate person, Kalliste... and I hate being betrayed by a clown like this. It's personal, you know. Not business any more... entirely."
And when she turns her head back, leans back slightly to look at him standing behind her, he is distracted a moment by the cleavage of her dress and what it shows and hides at the same time. This short second that he doesn't look streight at her but downwards might already be a more honest answer to her question than whatever he could say.
He quickly refocusses and looks at her with a somewhat wry smile, then bends down to her, as if he wanted to whisper something in her hear, but instead of that, he kisses her behind the ear softly, answering her question a second after his lips have parted with her skin less than a centimeter in a whisper that carries promise and also confidence in it: "A lot... believe me... a lot."
