Claire, you are doing great! I think all of your feelings and reactions are perfectly justified and normal. And it is great to hear that you feel your life is good one year without him.
Even though he may not have made moves toward you or said that he may have made a mistake, it is completely possible that he has had these thoughts in his mind. Maybe all the time. His loss.
Also about the photos on the bedside table... I know the likely thing is that it was your H and his date in the photos. But you know what? One time while we were still happily married, my H came home late from an office party and put some photo booth photos on his bedside table. They were of him and a group of other coworkers. They stayed on his nightstand for weeks. It had no meaning, he was just too lazy to put it away somewhere. So this photo you saw from afar could have been him and the groom, him and the bride, him and the ringbearer for all we know. Or it could have been his date but it doesn't mean he was gazing at it lovingly while falling asleep. Try not to let it bother you too much, it could have no meaning at all.
