I think Brian described very nicely the shift of emotions CJ has gone through. He did seem to fall into a more peaceful state than I once his "decision to stay" was made.
And, I don't know, I'd perhaps LIKE to think that he is reminded of what he did every day, but he APPEARS to be doing very well at putting it all behind him.
When I have a bad moment (Like an anniversary) his only comment is to put the past behind us, focus on now and the future.
Frankly I think I'd LIKE to hear him say what he did still haunts him! That's not a very noble sentiment, is it! But you're right in that it doesn't seem fair that we, the LBH's, have to carry the bulk of this burden ourselves.