Hang on, I've got several non-canon Diane quotes here:
"You guys have a LOT in common! I'm sure you'll be the best of pals!"
"You were always cool, but with us? You'll be 20% cooler! ...What reference?"
"Angels are the best! I wish I knew someone with an angel form. That'd be great."
"Part of me wants to compare her to a puppy? It might have something to do with this strange urge to pet her head and tell her she's good."
"She's basically a Disney Princess."