I agree with SeanMurpph in most ways, I would say it's about a relationship where, in this case, the girl has a history of drug use or abuse and is still struggling with the addiction. Each time she relapses she swears it's the last time, it won't happen again. While the man is begging her to live up to her potential, her past doesn't define her and dwelling on it only "slows the momentum" of not only their progress in the relationship but her own progression forward toward a clean start.
I agree with SeanMurpph in most ways, I would say it's about a relationship where, in this case, the girl has a history of drug use or abuse and is still struggling with the addiction. Each time she relapses she swears it's the last time, it won't happen again. While the man is begging her to live up to her potential, her past doesn't define her and dwelling on it only "slows the momentum" of not only their progress in the relationship but her own progression forward toward a clean start.