Serve her for a year
You stay with her, as a servant.
She likes your obedience and your strength, you share with her many dinners where you speak with her about your world, and the advanced technology, the planes, the rockets to the moon.
She's delighted and the matriarch treats you like her special bard.
After a year, you learn a lot about their society and she order a wizard to open a portal for you.
You can see your city on the other side, she stretches your hand and wishes you luck on your journey.
You walk and you return to your world.
But you are stronger, you can cast basic magic, but... you are a woman.
You are embarrassed, and you think that you have to think about what you are going to do with your new life.
In any case, after a year with the dark elves, you are convinced that women are far stronger than men... it's not bad after all.