I think that the situation in this song is the same one that inspired "Mother's Day". This is about the guy that raped his girlfriend and you can feel the hatred for him in lyrics: for hurting the girl and the current relationship. What he had done to her may now be playing a part in the current relationship (trust, intimacy, etc). Matthew, I assume it's his experience, is disgusted that any one, especially a man, could do something so terrible ("an imitation of a man") and feels unjust for himself and his girlfriend.
I think that the situation in this song is the same one that inspired "Mother's Day". This is about the guy that raped his girlfriend and you can feel the hatred for him in lyrics: for hurting the girl and the current relationship. What he had done to her may now be playing a part in the current relationship (trust, intimacy, etc). Matthew, I assume it's his experience, is disgusted that any one, especially a man, could do something so terrible ("an imitation of a man") and feels unjust for himself and his girlfriend.