Whether it is a date or not, go and have some fun. You deserve to have fun and just enjoy the companionship for the day. If you don't want this to turn into something more than just a one time deal, you will need to set him straight that you aren't interested in anything long term...but that is way down the road.
Go, have fun and come back and tell us how things went.
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.
