Dark Forest Sprite
She is not your friend. Do not ask her for anything; she will give it to you but, somehow, it will not be what you thought it would be, and you will now be in her debt. The only way to discharge that debt will be with your own life, or the life of your first-born girl-child. Respectfully (very, very respectfully) apologise for being in her domain, and turn and walk away. If you show courage while doing this, she will let you go, unmolested. If you show fear, she will play scary games with you, but as long as you ignore them and keep walking away, she has no power over you.