Butterfly~ this is a sweet poem that I think you should consider working on and honing in on the meter. I think that there are a lot of people who could relate to this poem, but in order to get it published, you'll have to find a meter that you like and stick with it.
What I mean by this, is that in line one, you have a 4 syllable count and then in line 9 you have a 7 syllable count. So to some of us readers, it seems off. I suggest that you stick with a 6 or 7 syllable rhythm, as it seems to be easier (more natural) for you.
With that in mind, for example, your first stanza could read,
The reason you walked away,
You said, was to let me grow.
But why you chose to stay away,
From me, that I'll never know.
I guess what I'm saying is if you try to be a little more consistent in your rhythm, I think this poem would be even better than it is. And it is good, don't get me wrong. I just think you should try to make it even bbetter.