[Leslie is at least spared from realizing that Aerith is talking about being sort of dead when it comes to not being able to see her friends any more in the waking world. After all, if either side were dead, they couldn't be dreaming at all, right? (She does not make the connection with the like twenty ghosts she met once.)

It's clear from Leslie's expression that she noticed Aerith's eyes dim, and it's also clear from the way she's fidgeting that she doesn't know what to say about it. She doesn't actually realize that they can't see each other in the waking world any more because Aerith is sort of dead, because if either side were dead, they couldn't be dreaming, right? (She does not make the connection with the like twenty ghosts she met once.) She's still not quite sure what to say since she doesn't know the circumstances behind this separation.

Eventually, she blurts out.] -- That's an amazing power, though! Your friends are really lucky that they can still stay in touch even after you...moved? And maybe one day you'll be able to live in the same place again. I, um.

[She tries to put a comforting hand on Aerith's shoulder, but she's like a foot shorter, so she makes do with the upper arm.] It'll be okay?