She broke up with him. In the end its about her breaking up with him because it wasn't any good for her anymore. It's not that HE'S no good for her, its just that the situtation being with him put her in was too much to deal with. "You know our hearts will never get out alive" refers to how its shredding them both inside. They fought too much, or one wasn't willing to do what should have been done and "on hearts the faithless can't rely" meaning he has faith in their relationship and she doesn't. And it hurts too much for either of them to hide, they loved each other and it was deep and true but it just hurt because something got too hard. Maybe it was a long distance relationship? Maybe the fault didn't lay on her and it didn't lay on him, they just couldn't make it.
She broke up with him. In the end its about her breaking up with him because it wasn't any good for her anymore. It's not that HE'S no good for her, its just that the situtation being with him put her in was too much to deal with. "You know our hearts will never get out alive" refers to how its shredding them both inside. They fought too much, or one wasn't willing to do what should have been done and "on hearts the faithless can't rely" meaning he has faith in their relationship and she doesn't. And it hurts too much for either of them to hide, they loved each other and it was deep and true but it just hurt because something got too hard. Maybe it was a long distance relationship? Maybe the fault didn't lay on her and it didn't lay on him, they just couldn't make it.