Maybe if I used something like this when my heart was breaking it wouldn't have become permanently scared. Your heart breaks not just from a broken romance, but also from loss, like when your partner dies.
And I've had both, death being the worse, of course. Each time I afterwards realized I had become a little more emotionally numb, the scar tissue building up, I suppose as a self-defense mechanism. So that when I wanted to open my heart to someone again, I didn't have as much to give as I did before, it simply wasn't there anymore. I feel like a winded & exhausted runner, who knows he's going too slow, but there's nothing left inside to call upon.
Instead of the question the article asks: should we take anti-love drugs, for me I'd like to have a love drug, the mythical love potion, if you will. To re-implant emotions I used to have, before they got burnt out of me.