There's a possibility

All that I had was all I'm gonna get. So tell me when you hear my heart stop - you're the only one that knows. Tell me when you hear my silence - there's a possibility I wouldn't know. So tell me when my silence's over - you're the reason why I'm closed. Tell me when you hear me falling - there's a possibility it wouldn't show.

(By blood and by me: I'll fall when you leave)