It's been one of my headcanon connections ever since I started toying with Celeborn's backstory - if I ever finish it, there's an entire story of how he (and the left behind Indis, who is not amused by Ingwë's attempts to come back and control her) found Míriel. :D I'm glad I'm not the only one who prefers her born pre-march.

Celeborn as Sinda, actually! He decided to stay behind and help lead the Sinda when Elu disappeared and refused to quit looking for him. So when Míriel leaves (with the Noldor, I think), he stays behind. Then he hears nothing more of her until Galadriel or one of her brothers starts nattering on about Fëanor and exactly how strange his family is, with that dead and refusing to return mother.

I might torment him too much.