Yes, but you are a person, Ser Howe. And you have a right to express if you are feeling uncomfortable on a personal level. To tell someone that you feel strange because of rank or because of personal preference isn't the same as telling an elf that you don't want to kiss them because of their knife-ears or because you think they dance naked under the moonlight.

[ And she's entirely certain that he would never say such a thing, true or not. ]

I had thought that Wardens put those things behind them. She may be your superior, yes, but aren't you all equal in brotherhood?