Line in a song

Ain’t it kind of funny, how love can be like money
You can spend it or save it like your last time
How we went from forever to a box of old love letters
On paper, that still don’t make sense in my mind

How do you go from being someone's someone
To just someone they used to know
There was a time when every melody was meant
For you and me, so how did we become
Just some line in a song

Ain’t it kind of crazy, how love can be that way
You miss someone so much, then we just move on
You try to make it better, but the heart just ain't that clever
You’ll just feel the way you do until you don’t

How do you go from being someone's someone
To just someone they used to know
There was a time when every melody was meant
For you and me, so how did we become
Just some line in a song

Ooohh, how do you go from being someone's someone
To just someone they used to know
There was a time when every melody was meant
For you and me, so how did we become
Just some line in a song