He ripped himself free of her claws, and she jerked her head to the side, only narrowly avoiding the kick. When he spun and ran off, her first instinct was to follow, but when even a single step sent pain tearing through her body, she gasped and fell back against the wall, then sunk to the floor. It felt like every inch of her body was in agony, and the feeling was only made worse by the healing factor that kept every nerve pristine. 

Maybe just this once she could let him go and finish the contract later. After all, he wouldn't exactly be hard to find. She tried standing again and her still-healing chest exploded in pain. Yeah, she could kill him later. For now she'd just sit here and heal.