I love this form. I have written many and whenever I have, I find they have a mind of there own. Or should I say, a way of giving a subconscious mind words.
The word, 'Black hole' is visual. A powerful force, an imploded star, drawing all and everything into it. For you to use this as a metaphor for being lied to, treated badly really ups the anti. It screams with the same 'black hole' force - anger, frustration, its all there. I love the last line, it ends this piece superbly.