I think the song is very closely related to the video. The story in the video is that while she is in a relationship with one guy, she falls in love with another. She then parts with the first man for the sake of the other. I think the song tells not to cling too much to an old love if you fall in love with another person. The "while your lips are still red" in my understanding doesnt mean "as long as youre still alive" but "as long as youre still young", like in the first verse: "Young heart for love, not heartache".
So the message basically is: Dont be too sad about a broken relationship, but enjoy love, no matter to whom.
I think the song is very closely related to the video. The story in the video is that while she is in a relationship with one guy, she falls in love with another. She then parts with the first man for the sake of the other. I think the song tells not to cling too much to an old love if you fall in love with another person. The "while your lips are still red" in my understanding doesnt mean "as long as youre still alive" but "as long as youre still young", like in the first verse: "Young heart for love, not heartache". So the message basically is: Dont be too sad about a broken relationship, but enjoy love, no matter to whom.