I don't even know how to describe this book.  Maybe my problem was the writing (so many commas). I loved the premise of the book,  the thought behind it,  but the execution was convoluted.  It was a quick read but it could have had SUCH DEPTH that it would shake the world.   I figured it out... EVERY PARAGRAPH IS A SENTENCE. it's how I imagine a Sally Rooney book written (i haven't read anything of hers).