It's a story about a boy and a girl not communicating at all to make their relationship work. The map shows the way, at least for the guy, but GF is not that interested in a serious relationship. GF doesn't have a clue. Unfortunately, Boy makes a huge mistake in the midst of his depression (getting close with another girl at the party), and GF, again, being clueless, overreacts, runs away, invites the worst of all possible outcomes(getting killed by a car). The sad irony in this is the Boy loses too.