Pandora The Demon Queen

After you kill the Demon King, you celebrate his death by going to his treasury to help yourself, in there you find a beautiful demon crying and hiding, you go up to it and it’s the Demon Queen, “please don’t kill me” she says pleading softly for her life.

You are the hero of the Viryn Kingdom and you have just killed the Demon King, after celebrating your victory you go around the Demon Kings castle to loot to find a scared demon hiding from you, it's the demon kings wife, what do you do?