Make the honorable response less foreign through practice.

Doing the honourable thing can feel awkward, like speaking a language you learned but never use. That awkwardness is not a sign that it is wrong for you. It is a sign of unfamiliarity, and unfamiliarity is fixable in the ordinary way, by doing it more often when the stakes are low.

Find a chance this week to say the true, slightly uncomfortable thing. It will feel foreign the first time and less so the third. Practice is the whole mechanism.