Betray her by stabbing her in the heart with my Sword of Eternal Darkness.
Find a way that kills her mom and kill her with that.
Find a way that removes her father from her life.
Find a way that kills each and every loved one that she trusts and kill them with that.
Find a way to destroy her emotionally until she begs me to stop.
Find a way where she is thrown into the trap of ice spikes and I will leave her to die in there for that is what she did to me.