I'm not 25 Years, but I will chime in. Yes, it's very normal for them to come have a good day w/you and the family and then be quiet for a while. What happens is that they actually warm up to doing things w/you and then later on they remember that you are the "enemy" that made them unhappy, etc. Many of them do this. Continue to drop the friendship crumbs, keep things light and simple and he'll come around again very soon. Leave him be for now and allow him to come to you.
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.
