At the first ever show I played
I lost my guitar pick
So I played with my finger, so hard it
Started bleeding
And the girl I had a crush on kissed it and ask,
"Does it feel better?"
And I said,
"No, now you just have blood on your lips"
She laughed it off,
And wrapped gauze around the wound
And the pressure
Reminded me of the first time I got punched in the gut
Which reminded me of pain
Which reminded me in one moment, of how you can ruin everything.
We went out back and lay in the grass
Gazing at stars
And if you squinted hard enough, you could see Mars
And she asked me, will I ever see you again?
And I said of course,
Before getting up, wiping my back, and never seeing her again.

And I guess, I ruined everything.

You know, humans are kind of like sand castles.
If you look from far away, it's perfect
But when you get close enough
You see all the scars, the holes, the impressions of other people

I ask her, after six years
Do you remember me, and I can tell
The outside of her sand castle has been changed
By waves upon waves
But the inside still has a locket with a face of mine
And says yes, but,
No, no, no, no,
Something's different
You're not who you used to be,

Maybe due to the fact that all humans change and have their own independent emotions that can't be controlled by others.

Or maybe, it's just your new jacket.