Here's the way I see it: this song is about being married or in a long term relationship and falling out of love. Its about how they both know it. "red red red" means all they do is fight, and also symbolizes her frustration within the relationship. The complimentary color part means they they are all or nothing together: in the beginning or on good days they beam together; as of late, they have just been growing old and bored together. The diamond signifies a mistress. She keeps asking him and bringing it up even though she isn't getting clear answers...but she knows if she didn't it'd tear her apart.
Here's the way I see it: this song is about being married or in a long term relationship and falling out of love. Its about how they both know it. "red red red" means all they do is fight, and also symbolizes her frustration within the relationship. The complimentary color part means they they are all or nothing together: in the beginning or on good days they beam together; as of late, they have just been growing old and bored together. The diamond signifies a mistress. She keeps asking him and bringing it up even though she isn't getting clear answers...but she knows if she didn't it'd tear her apart.