At this moment, the poem seems to change narrator, or at least the writing style is different. Someone is not having a good night.
The repeated words and expressions really convey the manic feeling emerging from the person talking.
Have you ever felt unable to speak your mind? Maybe there isn't enough time in a day or maybe you are afraid of the other person's reaction. You know how all those emotions and words pile up until it's almost as if you are mute?
I believe this is what the narrator feels.