But it'd like 9 hours isn't it? It's sooo difficult to sit through the movies in the first place. It's not even that I don't like them, they're just so damn long.
It's 12,5 hours total.
But the thing is, the extended edition is more like the original and the other has been unduly chopped down for theatrical limitations. It's missing essential scenes basically.
There is a fun podcast called Drunk History of Middle Earth that is essentially this dynamic the whole time - a husband/wife duo where the guy is trying to teach her about Tolkien. She's genuinely open to it, so it's probably less annoying than some other instances of that pattern. Aside from the hearing new perspectives on the lore, it's interesting to vicariously experience the stories for the first time again.
Also I love their accents, and how they sometimes expose their personal lives to the world and talk through stuff as a couple - it's very endearing
I had a friend like that with every comedy movie he liked. He'd just stare at you with a goofy grin prior to every part he thought was funny. He'd look over, grinning, just waiting to see your reaction. He's a great guy, it just made it real uncomfortable to watch a movie with him.
Also had a friend like this and it made it quite annoying to watch anything with him. He later got a diagnosed on the autism spectrum so that probably explains the tendency to do this