This was a waste of time. He was foolish and stubborn and he wasn't going to go away. Stupidity seemed to be a heavy-handed trait among their people. Stupidity and the need for blood shed. Lexa listened while the two bickered, her jaw set. She wasn't interested in whatever power play was going on. She didn't care who had to look after who or how many lives they were bargaining for between one another. She was tired of her people being trivialized by theirs. The ways of her people had kept them alive for years upon years and a handful of people tumbled from the sky and they had a right to judge? To condemn? To murder and encroach on their existence? What gave them that right? Who did they think they were?
"Enough," Lexa's tone was harsh. "This ends now," she snapped with an air of finality that sounded deadlier than her intentions truly were. She wanted to get the point across and she wanted them to shut up. So Lexa stepped completely from behind Clarke and pulled her knife from the blonde's neck. If this Bellamy wouldn't listen to Clarke, perhaps he would be urged to do so by demonstration. Clarke was a healer, she could heal the minimal damage Lexa would inflict on her and perhaps this warrior would see the futility of his bravado and leave them be. With Clarke in her control, once they returned to her own lands, Lexa and her people would have the upper hand. They would have Clarke in custody, which gave them all the leverage they would need to get everything they wanted.
So, without hesitation and without warning, Lexa swiftly pulled back her knife and moved to plunge the blade into Clarke's arm. The wound would be superficial, but it would be painful and it would send the message she wanted - which was that she was in charge and they were not. Clarke was her prisoner and there would be no happy ending for the Sky People.