Well, depends what he means with "your"; OP specifically, or an arbitrary person? Because I think we are getting dangerously close to shooting down useful criticism and discussion for fear of hurting someones feelings. It's obviously insensitive to say that OP is a bad person because he is doing one-on-ones, but it should be totally acceptable to say "this is weird (from my perspective), I can see several issues with this, I wouldn't personally do this, but you-do-you", and often "(from my perspective)" and "but you-do-you" parts are implied; their absence shouldn't necessarily be taken as proof of mocking.
(Disclaimer: I have no opinion on partner one-on-ones.)