Hugs.
I haven't commented in these threads before because I didn't want to be a downer: About two years ago I lost an online acquaintance to the same cancer as Don. She went so fast - just two weeks from diagnosis. And looking back in her blog, just two months from the first symptom that something's wrong.
It is hard. For months my brain expected her to blog about the "experience". She was also active in an online role playing game. I expected to read about her plans for her characters. Now that she had "inside privilege" and unlimited playing time, was she going to run different types of characters, perhaps matching her own status? It took my brain a long time to accept that none of these things were going to happen.