Michelle - your transparency is admirable, and I applaud both the honesty in your marriage prior to and during the open marriage.
While I was sad to see that you wrote that you still are unhappy -- what will always be a wonderful trait in your marriage and for each of you: is your openness and sincerity. Either it will heal it or it will show you a new path...
Thanks for sharing your journey with us...it teaches many about the choices we make and have when married! Wishing you joy and peace soon and often!!