Rick Riordan said this quote

Then she did something so unexpected Nico would later think he dreamed it. She walked up to Nico, who was standing to one side in the shadows, as usual. She grabbed his hand and pulled him gently into the firelight. ‘We had one home,’ she said. ‘Now we have two.’ She gave Nico a big hug and the crowd roared with approval. For once, Nico didn’t feel like pulling away. He buried his face in Reyna’s shoulder and blinked the tears out of his eyes.