T.T
-cries-
That was beautiful~
I can tell that there's a lot of emotion in the words. If she [whomever "she" may be] reads this, I know she'll understand what you're trying to convey.

Writing-wise, don't feel as though you have to rhyme to make a poem good. That's just what poetry is, putting emotion on paper. Emotion rarely rhymes. If you're having trouble, don't be afraid to freeverse :]

Good luck~

The desperation for forgiveness is melancholic but sweet. The rhythm could be more uniform but the rhyming is nicely done.