Finding a couple more complicated is impossible. Fight after fight after fight. They never agree on anything but they still manage to stay with each other. No one knows how, or even why, but they do. Read about their fights, how they make it out of them and how it's my way or the highway from both sides. A good song to listen to while reading this fanfiction is Stubborn Love by the Lumineers. It's exactly what the book is about made in to a song.