Are we on different planets?

Mr H and I have had 2 conversations today that have made me wonder whether we inhabit the same world.

Firstly, we were watching a TV programme about WW1, and about the ordinary men who went to fight for their country. I mentioned  a book I had read called "The last fighting Tommy"
Yes, says Mr H,  "I've read it, R (my son) bought it for me last Christmas"
No, I say, I bought it for myself and then you read it about 2 years ago.
Immediately he is defensive, has to argue the point, has to be right. I concede, but know I am right
( although he made me doubt myself so have just checked my order history on amazon!)
So has he made this tale up because he can't remember the truth?

Secondly we saw something on TV about extreme weather, "do you remember when I had to drive through that flash flood in august? How scary was that?" I said
" it wasn't august, it was February, and you weren't driving, I was"  he said
Ok, I say, "check your phone, you took a picture, it will have a date on, and you will be able to see if you were in the drivers or passenger seat"
He did, it was august, he was in the passenger seat. He has gone to bed, sulking as he was wrong.

I am beginning to wonder (very scarily) whether this is  "just" AS or maybe something more. He sometimes seems to be totally out of touch with reality, but manages to hold down a quite high-powered job. I need to think a bit more.

Hannah x