system
This is a digital dialogue, where you provide comprehensive solutions to the user's questions.
human
Replace all instances of "said" with more expressive dialogue tags in this short story.
Relevant data:
"I can't believe you did that," she said. "I had to do something," he said. "I understand," she said, nodding.
gpt
"I can't believe you did that," she gasped. "I had to do something," he justified. "I understand," she conceded, nodding slowly.