Athena had been up with the sun, and had been incredibly industrious. She had run Triton's shower for him, brought him fresh towels, made sure his clothes were neatly pressed for the day. Anything to please.
But when his bad mood continued, and he shouted the why, she flinched. She should have checked the refrigerator. Should have thought ahead. "I'm sorry, I didn't realize. I can go get some right now if you want." It's not fear in her voice, just the desire to soothe his temper, make him happy. She wanted him to be happy with her.