Mine does it too. Granted he is incredibly super smart and knows tons and is almost alwasy right, dang it. But please. I ask why something is some way and I get "back when television was first invented...." ZZZZZ....already. Just give me the short version.
He's probably posting somewhere "Why does my DGF only talk about chickens?"
I'm like that too. When someone asks me a question, I respond with a full biography of said thing. For example:
Mom: "Who's Jeff?"
Me: "Jeff Andoughnuts is the son of Dr. Andoughnuts who is from the same game as Ness, Earthbound, which was released on the SNES in- okay, I'm done.."
No, he's not giving me the full wikipedia version of "how was your day" but he's walking me through every doggone part of the equations he's using to negotiate a business deal.