Gilbert Bedivere is going insane again.
“Where has she gone, Salzaal?” Gilbert asks him lightly. "You're the last person to see her. Where has she gone? —”
She is referred to Viviane, Gilbert's younger sister.
The prince remains silent. When Gilbert squeezes his shoulder, he feels pain, so he casts a spell on himself to make the pain go away. Gilbert, on the other hand, is unconcerned. Gilbert lowers his head as his hands increasingly tighten around Salzaal’s shoulder.
"Where has she gone? Or what did you say that caused her to decide to leave? No, no, Salzaal isn't that type of person. So, where have you gone, my fujoshi sister? Or…
you abandoned me as well?"
Gilbert does not appear to be miserable when he comes to the conclusion, possibly because he has been abandoned so frequently that he has grown accustomed to it. He simply ceases to exert force on the prince's shoulder. And Gilbert’s lowly bowed face gradually rises.