"I decided on 'useful' a long time ago," X says as he walks inside. "Besides, when you're in my situation, it's a little difficult to miss."

That is, feeling the feelings in question, and being very confused by it. Unless Devin directly asks, though, X won't get quite that specific -- the memory is awkward enough without making it Devin's burden as well. He has his feelings well-organised and under his own control by now.

"Tea," X repeats thoughtfully, and then he shrugs. "If there's no slime in it, why not?"

Let's just say his experiences with tea before reaching Aifaran left a lot to be desired.