While on a business trip, my husband had sex with a co-worker he only knew for two weeks. I discovered the truth by finding a letter he had written to her saying that he loved her and wanted to be with her. He said he was living a lie with his wife and that his family were obstacles in his way of being with her. When I confronted him with the letter he confessed to sleeping with her. I was devastated to say the least. He has since realized, or so he says, that he really wasn't in love with her at all and that he does love me and wants to make our marriage work. Aside from having difficulty getting past the shock of what has happened, I am really struggling with the fact that he has not said he is sorry or asked for my forgiveness. He doesn't act remorsefull or sorry, in fact, he seems smug and somewhat proud of what he has done. How can I work on repairing our marriage if I don't feel he is truly sorry for what he has done to me and our marriage?