All sentences here are drawn from the dialogue of Lady Tremaine in Cinderella (2015). Feel free to change pronouns, etc. and alter them as appropriate for your character!
“Charming… How perfectly charming.”
“You did not say your daughter was so beautiful.”
“Now, now… Mustn’t blub.”
“Oh, you needn’t call me that.”
“What a good girl you are!”
“Don’t you see? None of that matters.”
“We’re ruined. How will we live?”
“Oh, [name], you’re too clever.”
“Is there someone we’ve forgotten?”
“Wouldn’t you prefer to eat when all the work is done, [name]?”
“Having delivered your news, why are you still here?”
“You’re too ambitious for your own good!”
“This thing is so old-fashioned, it’s practically falling to pieces.”
“This does not bode well…”
“Forgive me… I did not mean to intrude!”
“Your secret is safe with me.”
“Are you looking for this?”
“My story would appear to be ended.”
“Nothing is ever given. For everything we must pay, pay.”
“Best to leave it to me. That way, we all get what we want.”
“Well, that is a mistake.”
“Because you are young, and innocent, and good! And I…”
“No one need ever know the truth.”
“Do with her what you will. She’s nothing to me.”
“What a wonderful surprise!”
“Fate may yet be kind to us, [name].”
“I told you, it’s no one of any importance!”
“I forbid you to do this!”
“Just remember who you are, you wretch.”