Gate of Memoirs/The Goddess's Trap

At the Lem Shrine Ruins, Mora's attitude changes very suddenly, ultimately attacking the Summoner. But to what end?
Portrait 	Dialogue
Music: "Snow Poem" 	Music: "Snow Poem"
 	
*Mora: ...it would seem there is nothing here.
*Mora: And your friend still hasn't come back either...
*Mora: ......
*Mora: I guess it can't be helped.
*Mora: The truth is that I was hoping to deal with you both at the same time, but you alone shall do.
*Mora: That girl seems to be completely useless anyway.
Music: "World of Gods"	Music: "World of Gods"
 	
*Mora: Now, begone.
*Mora: You incompetent Summoner.