She.

She made a mistake.

But she don't know how to fix it. 

She felt guilty. 

But she don't know what to say. 

She wanted to go back. 

But she don't know where the bus station. 

She screamed. 

But she don't know her own voice. 

She got angry. 

But she don't know why. 

She cried. 

But she don't know how to cry. 

She laughed. 

But she don't know what does it for.

She smiled. 

But she don't know how hard it is. 

She's alone. 

But she don't know that it's her only friend.