Wonders never cease. I'm glad to see that he is spending time w/your son and actually took him shopping. It's about time. Now, let's hope and pray that he does something for his aunt. I'm wondering if all of the withdrawal was the deep depression hitting him. I'm curious to see what he does next.
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.