Yes, given the text and the time in which this was said, I tend to agree with
Ibrin's assessment as well. It was sort of a closing observation, and a sincere wish for the restored kingdom and Aragorn's future, contrasted with his own.
Besides, I can't imagine Celeborn bringing up his own
deeply personal life at such a parting, no matter how well the different interpretations refering to it might fit the situation. It would be a highly unsuitable way to part with Aragorn, and I just don't believe that Celeborn would be that self indulgent. What good would it do to depress the young pup, after all?