I definitely talked to him before the wedding, I was the best man. We had the dinner, where we were all joking around that he was going to ‘disappear’ after getting married because his wife would be no match for us (such a bad joke, especially now). At Mynt we were just relaxing, talking about random stuff, he seemed ok.
I did catch him on the side and spoke about the rings/plans for the wedding morning..he seemed relaxed and I didn’t notice anything remarkable. Maybe he was a bit more reflective, but it seemed normal because it was the night before the wedding.
Other than that doubts are everywhere. All of the scenarios you have mentioned have crossed my mind at least one time or another.