Don't sweat it. My wife didn't even know what jazz was... she thought it was Kenny G. She had no idea what a Hammond organ was (which is my life, basically). Love overcomes all that.
I was shocked when I accidentally ordered two copies of Cannonball's album with Bill Evans from that big Concord sale and she said, "Oh, I'll just take the extra one to work. I like Cannonball."
Being condescending about it doesn't do any good. If she said, "Oh yes, I love jazz. Kenny G is great." I would say, "Well, he's not really my kinda jazz. I prefer this..." and throw on some Stanley T!