Board Thread:Questions and Answers/@comment-172.56.2.157-20160415181231

In SAO 2 episode 23, Beginning of a Dream, Yuuki and Asuna have the following conversation about Kirito.

Yuuki: Still, you should be careful.

Asuna: Er...?

Yuuki: I get the feeling he's not living in the real world either, not like me, but...you know?

Asuna: Eh...hee hee...

What do you think Yuuki could be eluding to? 