It's a frustrating question, if only because answering means admitting he wasn't okay in the first place. But, well, he wasn't, and it's probably painfully obvious, especially when there's a very good chance Eiji overheard him talking to Gavina when he first came in.

"Yeah, I'm fine." It's sort of grumbled, but he means it. "Everyone needs to stop having those stupid dreams." It's as much explanation as he's going to volunteer, but there are some ways in which Eiji is not stupid. He'll piece it together.