"You are not." Sigma himself is a coping mechanism, and he is not about to mince words. Not now. An ally who requires protection is one thing; a weakened combatant is a different thing entirely, and tilts the equation in ways that are far more difficult to compensate for. "I did not tell you not to fight; I told you to gather yourself. Do so, or I will remove you from the battlefield." An unpredictable variable needs to be excised from the equation; he is not above evacuating her if need be.