Faith,
The only thing I can say is that you are stronger than you ever imagined....we all are. If you decide that you are going to stand, you will find a way to do so. As limitless said, you HAVE to take the focus off of him and what he is doing. I truly believe the MLC'er is incapable of truly thinking of anyone, but themselves. I am willing to bet he rarely, if ever, gives your feelings much thought.
Sure, it would likely be easier to start fresh with someone new, but we have invested so much time into a relationship we vowed to last until death. I, personally, can't just give up until I know that I have done everything I was called to do with every fiber of my being. I don't feel that I am there yet.
Like so many here, my H was a good, kind, compassionate individual. He cared about others and was passionate about life. The person who comes home now is not that person I have known since he was 16. I know that as much as he has expressed that he doesn't want me, there is something inside of him that still clings to me. He has NEVER verbalized this, but I know this through God's voice or intuition, I just do.