He lasted two months, but during that time I didn't talk to him about dying. I look back and SO much wish that I had talked about ...more. He didn't talk much because he was so weak, but I could have said more. I'm so sorry and am having a hard time forgiving myself for not doing more. Maybe I was in denial thinking that he would beat this thing again. He knew it was the end. The nurses knew it was the end. I don't know what I was thinking. Tiptoeing around the subject like it wasn't happening. He lasted longer than they predicted, of course. He was such a strong guy. I should have loved him more. I'm so sorry. I know this wasn't a question. Sorry about that too. I had to tell someone.
I did the same. We had little information from doctors and it wasn't until near the end that someone finally told us definitively that my mother was dying, and soon-- though we knew it was probably the case, I didn't want to talk as if it was because we weren't sure (and then the end came faster than we expected). And I didn't want to upset her. And I thought we had time (but she, too, was not entirely with-it in the last few weeks because of hepatic encephalopathy, so conversations that might have happened had she remained completely lucid, did not-- everything from talking about her dying to talking about exactly what she wanted for a funeral). Does all of this sound familiar?
I, also, struggle with it. But, I don't allow myself to beat myself up over it (or try not to; if I tell you that you can simply tell yourself not to feel guilty and that works, that you don't sometimes have to practically grab yourself by the collar and shake yourself and even then you doubt, I'd be lying), and you shouldn't, either. Hindsight is always 20/20, as you know. You thought you were doing the best you could at the time. Now you do not feel that is the case, but there is honestly nothing you can change by feeling guilty about it now; it will only make you feel bad. You took care of your husband and you were there right to the end. And perhaps he did not think you did anything wrong at all.
As others have said, no matter what you had done, you will always be able to think of something you didn't do, or didn't do "right," or didn't do well enough, or didn't do enough of. Always. I can feel guilty about things as small as "I forgot to bring my mom a bottle of soda she wanted while she was still able to drink it" (the one I brought after she no longer wanted to eat/drink is still in my fridge), or "I shouldn't have held her so hard to the low-sodium diet the doctor wanted her on and should've let her eat whatever the hell she wanted if we'd known she had so little time left" or as big as "I should've done whatever it took to let her come home to die rather than pushing her into a nursing home because we couldn't afford extensive home care aides and I was afraid I wouldn't be able to take care of her myself"-- or, yes, "I should've asked her if she wanted to talk about it because she probably was afraid and did want to talk but didn't want to upset me by bringing it up" and a million other things that I, as my friend would say, "shoulda, woulda, coulda" (in a way that means he thinks worrying about these things after the fact doesn't help).
And for everything I didn't do? There were things I DID do, things that some other people wouldn't do, things I hope meant something to my mom and I hope she saw exactly what they were and understood it meant how much I cared for her. I'm sure you have those things too, whether they're small or large. Remember them, whenever you think of the things you feel you didn't do. Everything balances out and for every way you think you failed him, think of the things you did that were wonderful.
(And like Davina, I first learned this "there is nothing you can change by chastising yourself" lesson from a cat.)
Psalm 34:18
" The LORD is close to the brokenhearted and saves those who are crushed in spirit. "
When your husband came home, you both expected to be together for about a week. He was with you for two months! Give yourself great credit that your husband was with you for much longer and under such a terrible strain.
I am so sorry for your great loss. Be good to yourself. You deserve it. {hug}