It doesn't take a genius to figure out what episode this is based off of. Heh, okay, for all you slow people out there (don't worry, I'm one of them), this is based off of the episode "Masks". This is yet another one in Star's POV.

"Masks"

What you became is what I cannot see

Are you really there beside me?

I don't completely understand it all

Was the darkness there to help you fall?

No one knew where you'd gone

The face you had, it seemed all wrong

You thought it was the only way

I feared the truth I found that day

Everything became clear , but you failed with regrets

Whey you left is something I didn't get

Just take off your mask , I already see you

I don't want to say this , but its true

You have something in common with your shadow

Now that you're safe , you'll always know

Now that your mask is gone

I see , all this time , you've been gone