As much as she did not want to place the burden of her secret on Lucius, she had to accept that by doing so she was upholding the honesty she expected from him in return. That was, quite possibly, the only reason she confessed at all. No weight had been lifted by telling him of the Unbreakable Vow; if anything it just made it worse. Now he was at risk of being seen as an accomplice to her treason. It was too much for her to think about. She just couldn't think anymore on it now.
All of it was too much tonight. She took one long cleansing breath to try to calm herself. No more tears tonight. Her expression softened as his turned lost. She closed what physical distance was left between them and looked up at him with a tenderness she would never bestow on anyone else (save for their son, though even that was a bit different). Gently, she reached up to brush her fingers along his jawline. "I do hope one day you'll learn that the only disturbance I find at night is when you're not there." Instead of drawing her hand back, she slid it up to rest on his cheek.