Thanks so much for taking the time to make that thoughtful reply. Now that I’ve come back to check, I realise I should have posted this in the bereavement section – sorry!
Your words make a lot of sense – particularly the part about companionship having been damaged by the illness – that was definitely the case and she went from being my closest friend to being more like a stranger whose mind was always elsewhere. It’s comforting in a way to think that this is a shared experience rather than just something that went wrong with our relationship. She took unwell and died very rapidly, there was no time for any final conversations, and I only hope that she didn’t die thinking that she was unloved, even though neither of us had really been able to express it for a long time.