Yuriel can tell that there is something wrong with Emilia. There is a faint black smoke coming out of her body which is a bad sign that a person used too much black magic. It is not hard to guess how did it happen. One of those reasons is probably the magic that's controlling Relias right now. Since Emilia is not a wizard like him or Emir, then she probably pushes herself too hard just to keep Relias under her control until now.
"You! How can you—"
"Oh, shush. I don't want to hear your speech. It will just make my ears irritated."
"Argh!"
"..."
Penelope gives Yuriel a look. She discovered that his talkativeness can probably be a good weapon if they will only fight verbally. Just look at Emilia who is quickly losing her temper after Yuriel insulted her. Relias, her so-called beloved man, is just standing beside Emilia as if he's just a doll she brought with her.