I think he was. It's been a while. I think I'll be watching it soon for the 3-day weekend I'm having next week so I'll keep my eyes open for that!
And there is another board, I remember while reading through the board, there was a thread called "I betrayed my wife ..." and it was a poll if Michael meant Apollonia or Kay when he confessed to Cardinal Lamberto and I think he was definitely meaning Kay. I think the reason Michael probably didn't remarry was probably because he still considered Kay as his "wife."