It does make sense, if she was responding rather than saying it in Latin for him.
How Do You Say "This Is Mine" In Latin?
This reminds me of an episode of Bones I just watched, where the guy says "this is mine... Do I have to say it in Latin for you?" and she responds "absit invidia". But it doesn't make sense... "Absit invidia" means "let there be no envy or ill will", or in other words "no offense"... Hmmmm
All mine in latin