Correct. He is. The best thing is just to humour him; he's not sure what the word means, and goes into a strop. It's one of the funniest things on the Interweb. You'll soon start to pick up the gist ... Though I suspect you already have!
Do they? I don't think I've ever heard the word over here. But in England 30 years ago, the pronunciation was split about 50/50.
They say twot in the Sopranos quite a lot. Nobody in the UK pronounced twat as twot 30 years ago. I think that one was a dream
About a million of them were called George, and there were two Cuthberts. I can't remember all the other names. Stop been cant.