Personally, I would drop him a note and say that you respect his decision and enjoyed the time that you shared together and will always remember him. Then go about your own life and occupy yourself and tend to you. One of two things will happen: he will either stop and think about the fact that you did have a good time together and wonder if he should reach out again or he will allow you to move on and you will heal within the time he needs to re-think this. It's not instant and could be several weeks. Either way you will be fine.
But as stuck says, DO NOT badger/nag or constantly contact him, ho
