Order Albina to leave you be.

"Albina!" Your voice cracks like a whip, and she steps back, startled. "You've said your piece. Now it is my right to punish this **** - who's endangered all of us, including you - as I see fit. I will do that. I will keep her shame hidden from the rest of the villa. But I will punish her. If you can't bear to see that, I suggest you return to your room."

Albina stares at you for a few seconds, then swallows whatever she was going to say. "Very well...Lord Gaius." She glances at Martina. "All I ask is that you not injure her."

"I won't. Now go."

Albina turns and exits the yard, not looking very happy, while you drag the sobbing Martina into the storeroom.