He is taking this calmly because the alternative is to run away screaming.

He flinches a little at the reminder that Haleth is mortal. He has more sympathy for Aegnor, these days, not that he would ever say that to his cousin - besides, Aegnor didn't even try.

"I...." He says helplessly and then nods. "I ... I would like that. But. The reasons you gave... still hold. For me."

The Oath, the Doom.