Do you think it is fair on our part to expect any person to be consistently polite and good with us all the time?
If those whom we admire or like, tend to be a bit candid to the extent of being rude in a rare moment, should we give it back to them in the same vein or take a pause.
I think it would be appropriate to give a moment to explore the 'why' of it and then perhaps let it go. The person in all likelihood will realize and come back.
What would you do under such a situation?