I have to disagree with both
mark12_30 and
Rimbaud concerning Celeborn. He hardly displays the skills of a consumate politician or diplomat in his botched initial address to Gimli, which Galadriel's admonishment is partially addressed towards. What's more he apologises - something that politicians
never do.
And, if he couldn't care less what the Fellowship thinks of him, he wouldn't feel the need to apologise for his rash outburst.
My impression of him is of one so comfortable within his relationship with Galadriel that he gives no thought to her admonishment and is content to accept that he has spoken rashly and apologice for doing so. It's just that, for me, this whole episode simply doesn't square with his description as the wisest of Elves in Middle-earth.