I’m pretty dang good about setting personal boundaries, and I’m addicted to advice columns, so I think that makes me qualified to give you my two cents on how to respond to a gray hair insult.
Well, you can be nice about it. Some topics that are off limits with other people are allowed between a couple. You can have a discussion about it but just remember – it’s your hair, and you get to decide what to do with it.
And, of course, you can always go back to #1 – “Well, I like it!” But a stranger might feel free to keep going, so I think setting the firm boundary right away is the best way to handle it.