Narcissa couldn't help but note how cute Hermione looked when she blushed. "I'm sure the greater social world would thank you."
Honestly, Narcissa had no idea why she was being so nice to this girl. They had been on different sides during the war (though not of Narcissa's free will). They were so vastly different. Hermione was someone she would usually stick her nose up at, so what was different about this girl?
"Good." Narcissa grinned as she noted the amusing look of confusion on the girl's face. She was glad to have won this little battle.