It's about how irritating it is when you are newly single and still hurting and you're surrounded by lovey-dovey couples from whom there is no escape as they are EVERYWHERE ("every cafe table, every movie, every park, they want the whole wide world to know how in love they are") and how the singer hopes that one day she will fall back in love and be one half of one of those couples but until then she hates those people.
It's about how irritating it is when you are newly single and still hurting and you're surrounded by lovey-dovey couples from whom there is no escape as they are EVERYWHERE ("every cafe table, every movie, every park, they want the whole wide world to know how in love they are") and how the singer hopes that one day she will fall back in love and be one half of one of those couples but until then she hates those people.