The presence of tears is not actually required. Or rather, Aeleus isn't going to insist that they be there. Bodies are strange things at the best of times, and with them only recently having gotten their emotions back it's not entirely unusual that things have yet to get back around to whatever passes as normal here.

"I don't think any of us could have," he answers, once it's clear that Even is done speaking. He may not be quite sure what it is that Even is speaking of, but not even he can run from the fact that they have emotions once again.

He's just a little better at burying his deep down, where they aren't nearly as immediate.