There's a haunted look in his son's eyes, and Thranduil learns that even if the War didn't take his son away, the Sea soon will.
It takes ages for Thingol to step away from the Halls of Mandos. Why should he, when his daughter would never see this world again?
Something breaks deep within Elrond when he sees his brother follow the Men to their island. He lost their parents, why must he lose more?
Galadriel tried to hold her tears as her daughter, spirit broken, stepped into the ship. She still blamed herself for not being able to help.