I really have compassion for you. People go through divorces all the time and it is never easy. I can personally relate to how you feel. I did the Landmark Forum but it was my wife who had not done the course who asked for a divorce from me. I, like you, did something that I truly regret and she was completely unwilling to forgive me. Looking back on it, I can't really blame her for divorcing me. One of the things I realized when I did the Landmark Forum was that I gave my word the day I got married and along the way I broke it and unfortunately it wasn't just once. She knew about it and before the course, i really did hope that we could work it out. That is not how it worked out, but I honestly can say that it was for the better. While we did get divorced, I learned at Landmark to take full responsibility for how badly I hurt her. I can see it from her perspective now and I think in part due to Landmark have been able to accept her choice and get on with my life. The ironic thing is that we get along much better now and we are honestly happier.
I am sorry for the situation you are in, but we cannot control how another person is going to react when we hurt them. I really do trust that if you are willing to be honest and take full responsibility for how it all went down, it eventually works out.
My own experience