They can do and say some really off the wall things. Maybe he's looking at you as a friend right now and not his wife. Then again, he may not have even realized what he said. Sometimes comments just slip out w/o any thought. I would just take that comment w/a grain of salt.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.