" And the whole constant mantra about how 'long-term relationships are hard work' and 'everything has its ups and downs' and 'you're going to be annoyed by their toenails' and 'stick with it' and 'the grass only looks greener' and so on. It's actually very hard to tell when you should split up with someone. All I knew was I was waking up every morning thinking this can't be it, until death. When your relationship is making you feel life's too long, something's gone awry. "

― Mhairi McFarlane , Who’s That Girl?