Should a spouse be allowed to read your journal? Read details?

I’ve been writing in an online journal for over four years. You have to be “friends” with me on it, to read what I write, and my husband has always been “friends” with me on it.
I haven’t been writing in it lately, just posting pictures. Instead, I’ve been writing in an actual journal. i have a fear all my internet writings will disappear I just started doing this recently, my husband knows I have a journal, but I don’t know if he knows I write in it.
Usually he can read all my personal thoughts in my online journal, so does that give him the right to read my now written journal? Is it the same thing?
I’m not writing anything different than I would if I wrote in my online journal.
I feel that my actual journal is more private though, I’m not sure why. I feel more protective of it.
I know he’d never just read it without asking me, so that’s not an issue. I’m just curious what everyone would feel, in this situation?