"Yes, this is what happens when your boyfriend spontaneously combusts in front of you. You fall to your knees. You press your face into the pavement as the blood drips, thick and languorous, off you, as if it were ice cream in the sunlight. You howl like you've never howled before, and the howl confirms that there are things deep inside you. Things darker than the darkest things you've ever imagined. And you believe in those things. Entirely, without question."
The repetition of the "you" does have the effect of placing the reader in the shoes of the main character. The author wants us to feel this moment, which you have to say is an earth shattering one. The metaphor in the second line is all at once beautiful and grotesque. But the repetition and switch to second person point of view is really what makes this paragraph for me.
Like I said, the other passage was much better in its execution, but there is a lot to like in Spontaneous, by Aaron Starmer.