That settles it. I didn't have an answer for this thread until I saw the last two posts.
I would play Fleur. Or better yet, Charlie's new girlfriend, and team up with Fleur.

What's wrong with Fleur? Objectively, now.
From a distance, all you know is that she is part Veela.
But up close, she doesn't seem bad.
What she actually says and does make her seem nice.