Hi Phil,
So sorry about the loss of your friend.
Emotions may have an impact on pain more than we realize?
That's not to say all pain is "emotional," of course.
In my case, I have found sad or angry types of emotions can amp up pain, especially if I hold them in. Happier types of emotions release associated chemicals and lessen the pain. Just something I have noted with myself over the years.
I am glad your wife talks with you affectionately. That's quite helpful!
She is on your "healing team," after all!
I hope you will find relief, pronto!
Warmly,
DejaVu