I think it's about two partners in crime, and one of them is a about to commit a bank robbery or something of the like, while the other one is waiting for him outside(''I hold my breath and check the time, one minute no collapse''). The guy who did the dirty job managed to escape(''you passed the test and that's so good for you''), while the other one was caught somehow, and now, in jail, he questions himself about the loyalty of his crime partner, wondering if the guy will abandon him or not (''will you read the letters i will send to you?''). Makes some sense tbh.
mah 2 cents.