http://www.compatiblelives.com/
Concerned?
Yes, of course, I would be concerned too. There are just too many problems that need a resolution. Problems about his past relationship, not feeling free about talking about his present relationship to you and, of course, questions about a possible marriage.
Unfortunately, you present only one side of the story. Have him post his own view about your relationship. I am certain that you have tried your best to be fair but another view can only help in resolving your problems. In the meantime check out my website and its recommendation.