I might be wrong, but your h showed you the photos of your son doing weed whacking to get your reaction. I do hope your son had on safety glasses as those things can toss up stuff and hit the eyes.

I think you handled that conversation very well.

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.