"Understandable." William would understand completely if he'd known the nickname even existed. But Hitsugaya's correct, William would never use a nickname for him. In fact, if he knew how much he hated the name, he'd probably reprimand anyone who DID use it.

"I would be interested in meeting her, if you would care to introduce us." Hopefully, for Hitsu's sake, she won't bring up the name on her own!