Dudess - they believe it doesn't accomplish anything makes me look like the bitter wife.
What utter nonsense. I suppose that your friends would not want to be informed if their spouse was cheating on them? I would want to know, and I think you are doing the right thing by telling her husband. Are marriage vows so utterly unimportant to people nowadays?
That said, it is important, for your own well-being that you heal your (very understandable), resentment towards your H. Have you read Steven Stosny, "Love without Hurt"? I highly recommend it.
Gucci is right, that so many men don't wake up until their wives leave. Those are the men we hear from though. We don't hear from those who aren't interested in saving their marriages. Either way, I do believe that you are doing the right thing by leaving a situation where you don't get the love and respect that you deserve. I know it hurts. You have the power to end the hurt by grieving your losses and moving on to better things. I wish you all the happiness you deserve, with or without him.