The back cover of Why We Broke Up warns that “Min and Ed’s story of heartbreak may remind you of your own”. I’d like to begin this review with some kind of witty observation about high school break-ups. Thing is, I can’t; I bring a different perspective. Min and Ed’s story of heartbreak doesn’t remind me of my own, because I don’t have such a story. I didn’t have a relationship, short or long, in…