I love really uncomfortable accidentally creepy Plague knight who doesn’t understand social norms??
and like not in a “see? what a creepy villain” way but in a super meta sense that’s more like that’s how people see him and he just shrugs into infinity and rolls with it if you’re going to be rude about it, but he’s chipper and friendly to people who don’t immediately go “umm?? you’re making me uncomfortable??? please stop being.”
Give me socially awkward Plague knight who asks things like “have you ever had <disease>?” and then proceeds to explain the symptoms whether or not you said yes. Let him be a walking uncanny valley effect in the way he moves; twitchy and stiff and not graceful 90% of the time. Let him laugh in totally inappropriate situations and generally be super not-normal.
And his friends might internally sigh sometimes because he can be difficult, but they let him do the thing because he’s not hurting anyone; weird/creepy doesn’t mean bad.
He’s trying his best let this boy be weird.