This. I'll always regret that my last communication with someone was a text that was, if not actually bad tempered, a little annoyed and short.
A friend of my Mum recently had some ill health (some mini strokes) and Mum was saying that when they spoke on the phone recently, the friend said over and over again "Tell your family how much you love them, now, while you can".
Glad your wife was ok Tony. Must have been very frightening. She might struggle a bit with flashbacks and stuff, be prepared for that sort of thing. And yourself - sometimes those who aren't directly involved can feel not only the 'what if', but a helplessness, that they couldn't have done anything to prevent it. Mum and I were out for a bike ride and I rode over a cattle grid and then slid off on a patch of gravel. She saw me go down, braked hard on the grid and went over the bars, breaking her wrist - I looked back to her (from the ground, to shout "I'm ok!") just as that happened. I felt awful for ages, and to this day, I can't ride over a grid anymore.
Only you two will know your best therapies, but whatever they are, indulge yourselves.