Yeah, Stilly, I agree. It was a pretty dumb song if it was referring to romance (but it sounded good musically speaking). On the other hand, if it was referring to love in a more general sense, it could be downright cosmic.
I have experienced a broken heart over 2 things in my life...the loss of a lover and the loss of a good friend...on a few different occasions.
What cures it? Well, time does, yes. Forgiveness can greatly shorten the time needed, though. Realizing you are really quite okay on your own helps too. Realizing that there isn't only 1 special person out there for you also helps.