The war had ended, the Titans had been defeated, the world could live in peace, if they got over the grief. Hayley, a Hunter of Artemis, daughter of Apollo, and Thalia's second in command, looked at her leader and didn't see grief. Hayley had never known Luke, but she knew who he was, what he did, and what he had become. She thus assumed that Thalia would be upset by his death.
"Thals?" she asked.
"Yeah?"
"Are you okay? I mean…after all of the deaths."
It was very apparent Thalia knew what she was referring to. "It's a chance to start over. To forget about the past, and live in the moment. What happened is gone now, it's time to live. It's all over."
And in this moment, Hayley knew that Thalia was a perfect Hunter. Maybe she had fallen in love, and gotten her heart broken. But she could move on from that better than anyone. Thalia Grace was the strongest girl she had ever met.