The "what if" that never left me

In a cab on the way to office. And the radio is playing one of the songs that always gets to me - 约定 by 光良.

Together with 童话, these are the worst songs for me to listen to :P
So inevitably, I think of Bernard.

And the question that has plagued me for years, that I can never really get rid of, reason away, ignore, is this - What if I never got him interested to learn diving? Will things turn out different, or will I still lose him another way?

I know there's no point, and there's no end to "what-ifs". It's a futile exercise, a guilt trip. But (and there's always a but) if u ever had a loved one die in your presence, doing something you got him to try, only then will you understand how I feel.