The World, with Satan's encouragement,  has replaced (or substituted) God's love for their own. They place romantic love above all other kinds of love -  they sing of it, they praise it, they speak of it like it's the love of God -  it saves their souls. It makes life sweet and worth living, they can't live without it, it gives them a reason to live. Yup, it's their way of saying-  " we don't need or want God's love, our own will do", "we are gods, and the love we give is equal to or better than God's love". " We are morally upright -  we are righteous apart from Him. We don't need God." But alas, to gain entrance to that glorious city -  that city from above, they do need Him. He is the only one that can issue passports to Heave.

                   "And whosoever was not found

                     written in the Book of Life

                     was cast into the lake of fire"