The reason I enjoyed this was that it was like you reached into your brain, took out the words, and slapped them angrily on the page. Sometimes poems are good simply because of the fact that they were scribbled in pure, unaltered emotion instead of being well-thought-out. This is sufficiently angry and illustrates the types of thoughts one has when they're angry--choppy and sometimes unconnected.
Sounds like one of those love-hate things... I like the description of the other character; it's interesting that you contrast good traits with bad by disconnecting them that way. Nice ending, by the way.
It's good to see a newbie off to a good start. Looking forward to seeing your best works.