I thought it was about a relationship.
Saying that the relationship seems to be falling apart, and the two people are fighting a lot, but they're trying to stop fighting at least for the night and trying to make it work.
"We are one" - The two people are in one relationship, they're a package almost, trying to stick together.
"It's yours and mine" - The relationship is part of both of them, and they both need to work at it, but they both will get something good from the relationship if they stay together.
I thought it was about a relationship. Saying that the relationship seems to be falling apart, and the two people are fighting a lot, but they're trying to stop fighting at least for the night and trying to make it work. "We are one" - The two people are in one relationship, they're a package almost, trying to stick together.
"It's yours and mine" - The relationship is part of both of them, and they both need to work at it, but they both will get something good from the relationship if they stay together.