I think this song is about two people who are in a relationship that isn't working. That would appeal to the line, "Our hearts sing less than we wanted, we wanted." And one person is absolutely in love with where she is, but it's turning out to hurt more being in that particular place (i.e. "I love this place, but it's haunted without you"). One person is ready to call it quits, but the other person is trying to get them to re-evaluate their decision to leave. Which would fit the lines, "If you live another day in this happy little house, the fire is here to stay". That would mean that if they can make it through this severely hard time which will determine where their relationship will ultimately stand then it is something real and will last. And the last part of the song I think is the person who is asking the person to stay is saying that they shouldn't fight it because regardless of how they feel, they won't be able to let whatever is binding them together go.
I think this song is about two people who are in a relationship that isn't working. That would appeal to the line, "Our hearts sing less than we wanted, we wanted." And one person is absolutely in love with where she is, but it's turning out to hurt more being in that particular place (i.e. "I love this place, but it's haunted without you"). One person is ready to call it quits, but the other person is trying to get them to re-evaluate their decision to leave. Which would fit the lines, "If you live another day in this happy little house, the fire is here to stay". That would mean that if they can make it through this severely hard time which will determine where their relationship will ultimately stand then it is something real and will last. And the last part of the song I think is the person who is asking the person to stay is saying that they shouldn't fight it because regardless of how they feel, they won't be able to let whatever is binding them together go.