Daia's expression saddens that Allen might never see their person again. He's only just met Allen and already feels for him. He can't help but jump up a little in a bit of an encouraging, excited flourish.

"Then I hope you get to meet them again! And I hope they like you back!"

Daia - so encouraging of others, but doesn't encourage himself.

Yep, there it is. Of course, it's to be expected - vampires are eternally youthful unless they're turned from a certain age. But Daia was born a vampire. He'll likely never look old.

A slight pause, and then:

"I'm actually closer to one hundred. I'm... kind of immortal. So that's why it doesn't usually work out."

It could if someone asked him to turn them, but... Well, he can count on zero hands the times that's happened.