Each relationship is a book. Some are still being written. Some are finished, and some will be revised.
But each story of you and me is co-written. There are some with only one POV and some with many.
Because the book is co-written, you don't always get to choose where the story ends or how it goes. But you can tell your side of the story.
Just be certain to read the part that your partner writes about themselves, about their relationship and about you. Seeing their side can assit in plot holes, editing to the point where the story doesn't make sense any more and character corrections. The story of you and me is about "We..."