The trouble with being a Weasley, well, one of the many troubles with being a Weasley, as far as Percy was concerned, was that there were so very many of them, and so many spouses and children and cousins and dearest acquaintances to keep track of. One could hardly go anywhere without meeting someone who had some connection to his family, but Fleur would have been difficult to forget despite her ties to his brother and, Percy admitted, to him.
The hurt he felt over his family was crippling, and Percy's crutch was his pride.
"Gringott's is a wizarding bank and therefore accessible to all wizards," he returned haltingly, refusing to meet her eye. "If you'll please excuse me, the sooner I attend to my business the sooner I will leave, if it pleases you."