Like a dog loyal to its follower, Arianna still went back to Marcel, her arms wrapped around his neck once more neither was he complaining. But she recognized his tactics, Marcel was intentionally wasting her time. When she danced with him with the hopes of lowering his guard, she was the one running out of time, not him.
So when she danced around him once more, Arianna couldn't waste her limited time and struck. She raised her knees at the same time she placed her hand on his shoulder, but Marcel was faster.
He blocked her kick and took her wrist, and twisted it back. But then, Marcel must have applied too much force because she shrieked as loud as a banshee at the gesture causing him to let go of her immediately with a look of horror.
Arianna fell to the ground while cradling her wrist he must have broken in the process. Marcel went as white as a ghost when that thought hit him - he injured her. He has hurt her in his quest to win some stupid deal.