Megan is a girl she should say "Je suis toute excitée" if she has proper linguistic knowledge of french... But then again the missing e are mute and she's supposedly speaking so that wouldn't sound any different. Plus she only gained Grant's knowledge, maybe he never cared much about french. Just feels a bit off to see mistakes right before a speech about some great knowledge wich the use of foreign languages is supposed to emphasis.
Salope means slut, not whore by the way.