we are who we are, arent we?

.
We used to be just like twins, so in sync
The same energy now's a dead battery
Used to laugh 'bout nothing, now you're plain boring
I should know that you're not gonna change

'Cause you're hot and you're cold
You're yes and you're no
You're in and you're out
You're up and you're down

You're wrong when it's right
You're black and it's white
We fight, we break up
We hug, we make up

You, you don't really wanna stay
But you, you don't really wanna go
.