I am so sorry that you have lost your dear wife Mary Jo to this disease.
There definitely is no right or wrong here. You and Mary Jo made the decisions that were right for you. Take some comfort in knowing that she died peacefully and that she is no longer suffering or in pain. Part of her will always be with you in your heart and fond memories.
I can totally relate to what you are going through as my story is much the same as yours. My husband passed less than 2 months from the first symptoms. That was 7 years ago yesterday. I found this site a few days later and have been here ever since. The help and support of all the wonderful people here is phenomenal.
In time the pain will lessen. It will always be there to some degree, but it does get better and we learn to live with it.
I am glad you have found us and have shared your story with us. I hope you will continue to visit the site as it is a great support system for those who have dealt with this disease. No one but those of us who have can truly understand how it affects everyone involved.
Take care Mike. I wish you comfort and peace.