You still don't understand anything. [He might be saying this in part just to steel his own convictions - that nobody can help him and he's trapped in the coffin of his circumstances. Because to acknowledge otherwise would crack open the possibility that he could take a step in another direction, something he's afraid to try.]

Is that what I am to you? Something to help, to make you feel good about yourself? [He sneers this accusation, daring Henry to agree with him.]