It's about a break-up.
He's fallen out of love and she still loves him. ("I'm still in love, why aren't you?"). She also says that it doesn't matter to anyone but her - it's not the end of the world, the sun will keep rising, the world will keep spinning around.
It's about a break-up. He's fallen out of love and she still loves him. ("I'm still in love, why aren't you?"). She also says that it doesn't matter to anyone but her - it's not the end of the world, the sun will keep rising, the world will keep spinning around.