Separate names with a comma.
"Yeah," he said. "I didn't acknowledge it, though."
He stirred, mumbling something in his sleep before realizing she wasn't laying down, his eyes opening quickly. After a moment, he looked up at...
"Hmm," she murmured. "Okay."
He squinted her. "Before that."
(Yeah)
"That's awesome," she said, tilting her head. "Okay, who else?"
"I don't know," he said. "I figured it out kinda recently."
(Time skip?)
"Oh, okay. What about that one?" she asked, pointing to the queen.
"I see," he murmured. "Hm."
Only a few minutes after he spoke did he fall asleep, his breathing becoming shallow, and his heart beat slower.
She listened with an interested an expression, occasionally glancing up at him before looking back down to the board. "Uh huh. I see."
"When did you figure that out?" he asked, tilting his head.
He shut his eyes. "Goodnight. I love you too."
"Great," she said, crossing her legs. "I'm counting on you."
He laughed, brushing back her hair. "You bet."
He nodded, smiling at her. "Of course."
She squinted at him. "Just wait till I learn."
"Five year olds are relentless," he said. "I had no other option."
"That's true," he murmured. "It will work out fine, I'm sure."