Briseis' continued silence - and her eyes squeezed shut and a pained expression on her face - only seemed to confirm David's thoughts. David had never been involved in a fight in his whole life, but for Briseis he was willing to start one if that's what it took. He stood up quickly. "You're going to want to fuck off."
"David!" Briseis said with horror, mouth falling open as she looked at Achilles, terrified now for her mortal love. Achilles could murder him right here so easily. David was soft and weak and human on top of that.
David looked at his girlfriend and shook his head, trying to control the anger he was feeling for the blond man. What he meant when he spoke to her was I won't let him hurt you, but what he said was, "I won't let him touch you."