[Okay, so the reason's probably something more simple. Nothing for him to actually worry about. But he's very attention craving when it comes to Mikasa, so he couldn't help but feel a little sad-
Now he's more or less a little embarrased.]
Didn't think of anything to say or puppies decided to distract you?
no subject
Now he's more or less a little embarrased.]
Didn't think of anything to say or puppies decided to distract you?
[Those are his best guesses.]