. Guess I didn't know how to take it' that night we had that talk Found out about my replacement' I just smiled and shook it off I didn't ask you any questions' didn't beg you to stay You said you knew that I would understand' Then I watched you drive away When there's just no words to stay . I scream at the top of my lungs Yeah' I come undone I crash my broken glass when no one's around I cry out In the silence I can't take To cover up the sound it makes when I let my heart break I scream . I always say the right things' at all the right times I know I'm not the perfect girl' but for some reason I try To be the one who's smiling and laughing' to make sure everyone's okay I can push those tears back inside like an actress on the stage But when the curtains fall away . I scream at the top of my lungs Yeah' I come undone I crash my broken glass when no one's around I cry out In the silence I can take To cover up the sound it makes when I let my heart break I scream' I scream . I can't hold it in no more I don't feel like playing nice When I feel like getting loud I just gotta let it out I just gotta let it out . I scream at the top of my lungs Yeah' I come undone I crash like broken glass when no one's around I cry out In the silence I can't take To cover up the sound it makes when I let my heart break I scream I scream I scream .