He told Sky Arts’ Living the Dream he regretted how her condition meant she missed seeing “how much more content a person I am”.
He added: “There was a crossover when she knew something was wrong. What I hate most is the memory of her being frightened.
“Now the grieving process has begun and I think about her when she was well.”
You can watch the full show: Tuesday 30th October 8pm – James Nesbitt in conversation with Nicholas Evans.