SA, You are not the reason he isn't going...he knew you were going from the beginning. He wants his daughter to "beg" him to attend. He wants to feel important....
By him saying that he had some business trips to go on, I knew from that comment that he would be looking for an "out". He may fools us yet and attend, but play the victim for having to sit through the orientation briefings.
Again, I wouldn't wait on him. I would make my plans and enjoy yourselves.
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.