Just to put a spin on your thinking........ things can go to hell in a handbasket quick. Example: My ex and I were "that" couple. Everyone said we had the "perfect" marriage. Everyone wanted to be just like us. And for 16 years we did have a wonderful marriage. We were best friends, and everyone knew it. We bought our first home together in May. He threw me a wonderful surprise 30th birthday party with all my friends and family including a Limo. We celebrated our first Christmas in Dec in the new house. He started an affair with "my friend" in January, we were separated in April and divorced two years later. He married HER the day after our divorce was final. So don't judge everyone. They very well may have been that happy loving couple all those years.
WOW. Look on the bright side, at least it was not your best friend. Is it fair to say you two are not friends anymore?