I didn't really see the alliteration here. =/ Good rhyming scheme, though. And very descriptive with the emotions. I like how it progresses through the thought process and gives a strong view inside the mind of the character.
The main thing I noticed that could be improved upon (aside from the lack of alliteration--not a necessity for a poem, though it was for this contest) was that there wasn't really a steady rhythm, which I think kept it from flowing as well as it could have.