I'm starting to like Charlotte a little bit more. Though I'm still rather skeptical about her words here. What she said might not be her real dream but only something she's trying to convince herself of. That would explain a few things. She's feeling grateful for the way Slow treated her, but deep down she hasn't shown she'd have much genuine respect for him, which, of course, isn't particularly strange since he used to be a pig. So, Charlotte might be confusing her desire to pay back for what she personally received with her dream. It's possible she doesn't even know what her true dream could be, not having discovered it (yet).
Edit: Typo.