What made Rebecca so terrified of Arthur was actually the fact that he knew she was watching.
He probably knew because he could sense her, and that only showed how much his power which then increased the power of his instincts.
After that, he could obviously easily estimate that there was a hidden camera.
If even her gaze could be sensed by him, Rebecca knew that Arthur could sense the danger of her plan.
Things would be easy for him as he could leave or enter depending on whether he was convinced or not.
And perhaps he was really confident of escaping the trap she set up given his strength.
Rebecca canceled the meeting with the top brass of the European Bank, and exited the building she was in. She drove her own car, getting to the gun show as quickly as possible.
It was actually a long distance between her location and the location of the gun show, so she needed more time.
Of course, Rebecca wasn't completely unplanned.
