broken strings

who am i

A good actor
Yes that's what I am
I walk around with my head held High and a big fake smile like I have camera's fleshing everywhere for my spotlight
I bottle everything into my tiny heart that was managed to be broken by a guy I once thought will always be mine
It's funny how life goes
Today I'm happy
Tomorrow I'm the most depressed teenager ever
People find me strong
I once thought I was
Till I saw how weak I am when I break into tears
What has one done to deserve this?