I'm going through this right now so it really touched me! A great piece of work.

aww. that kinda makes me want to cry. i love you. and if i ever start to leave you slap me, k?

The beginning of this poem doesn't seem to fit with the rest of it. It might be the rhyme scheme, though obviously sacrificing meaning for rhyme is a bad idea. :) Maybe you should try combining the first three lines into one but still ending in here (maybe put the "behind" in somewhere else and say, "Why did you leave me alone here?/ Did you ever regret? Did you shed me a tear?" or something . . . I'm terrible at rhyming. :D ).

Once the rhyme scheme gets more regular (aa, bb, etc.), however, I really like it! The "grasping for a hand that isn't there" makes me so sad . . . very nice imagery, as is the "falling down a hole i can't get out." The last lines are very nice and the saddest. A very nice way to end it.

First off let me say that the feeling of abandonment expressed in this poem are easilly identified with. That being said, because the subject matter is a very universal one, to do justice to it you must try to present it in an original fashion.
The begining of the poem, the three consecutive lines of "Why...?" does not grab the reader's attention, which is imparative when writing within a popular subject. I hope you continue writing and enjoy fictionpress.