Excellent! You did a great job on meeting up w/him today. I think that as long as you keep your expectations zero, you'll be okay. By not over reacting to his kiss and hug and lets him know that you aren't going to put pressure on him. He needs to feel "safe" and that's okay...just follow his lead and allow him to continue to come to you.
Baby steps will eventually turn into adult steps...but it takes time.
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.