What's up with Celeborn?

[Rumil]

Just to be silly for a moment.....

We all know that Celeborn was a bit of a stand-up comedian, after all his 'old wives' comment was the funniest in LoTR.

In the scene we are discussing, he's giving Aragorn a bit of grandfather-in-law-ly advice after his wedding.

May your doom be other than mine, and your treasure remain with you to the end

What he's saying her is 'don't let Arwen wear the trousers in the relationship and don't let her spend all your cash'.