I accidentally dated my twin sister

This story is a FICTION! I made it all up and this is romantic but a twist, I find it weird why I have that in my mind so yes, they are twins but they got separated and after 18 years (yes very long) they meet each other, but they don't know they were related to each other so yeah and one day they found out the whole truth and...they still end up...nope not gonna say it READ IT UNTIL THE END!