Corrin was making his rounds as he usually did around the admittedly not-so-cleverly named Ft. Corrin - Beruka was supervising the crystal mine and Arthur was doing his best to not trample the cabbage patch flat - and was beginning on his way to his private quarters. He stopped when he heard something unexpected. "Waaaaah..."
He looked around, telling Silas to keep everyone going about their business as he did. He followed the weeping to the grove of dead trees (he couldn't fathom how or why Nohrian trees remained perpetually lifeless), where he found a head of blue-and-pink hair curled up under one of the trunks. "Peri?" he asked, mildly surprised to find her of all people. Her mascara was running when she looked up at him; he figured she'd been alone like this for some time now. "What's wrong? Why are you here crying by yourself?"
"Lord Corrin... I, uh..." She sniffed, trying to pull herself together, only to break down into another crying fit.
"It's hard to understand you while you're sobbing so hard." Corrin knelt down, speaking softly, "Can you tell me what happened?"
She avoided his gaze, which seemed odd. "Don't wanna..."
"Why not?"
"Because..." She curled up tighter, burying her face in her arms. "Because you'll say the same thing that they all did..."
She looked up suddenly, her expression and tone serious as though she hadn't just been a squalling mess. "I'm gonna kill 'em."
That was fast. "Um, what?" Corrin asked.
"All the ones who made me cry!" She quickly stood, taking some of the bark off the tree. "They're dead meat!"
"H-hey," he followed her, putting a hand on her shoulder to hopefully bring her under control, "we all get mad sometimes, but..."
"No joke," she growled, shrugging his hand away, "I'm really gonna slaughter them all!"
Whatever happened must have been serious, Corrin thought, interposing himself between her and the rest of the fort. She's incoherent with rage. I'd better stay with her until she calms down...
Peri's serious expression vanished as quickly as it had appeared. She covered her face with her hands, shoving all three into Corrin's shoulder as she broke down once more.