Hehe, I like the tone of this. Maybe it's the way I read it, but the first stanza seems to be at a completely different rhythm than the rest of the poem. I know you're not really into rhyming and that you usually write a bit more free-form, but I really think you had something going there at first and then it kinda died down. Just a thought. :)

I really like the rhythm of this one, and I admire that you can keep the imagery and metaphors going so strongly throughout it, because often when I try to do that it looks idiotic. I think the best lines are "I don't know why you bother, I guess you grew around your toxin."

your work never fails to amaze me. go away, write a book. i'd buy it in a heartbeat.