"Did you go deaf in stasis or somethin'?" He figures it's a legit enough question, considering he hadn't heard the 'for me' part at all, and he knows his ears aren't damaged. If this hadn't been Heero Yuy he'd be a bit more concerned about it, but considering it's Heero.. well. It's probably one of those things where he thinks he's said it but didn't actually and so Duo is just going to, you know. Bring it up but also kind of try to move along if Heero makes it possible. He's still suffering a little after effects of a concussion, but so far as he knew those didn't effect his ears. Or at least they hadn't previously.

(Someone start concussion protocol on this kid, please.)

"That's because Zechs has about as much self preservation skills as his sister." Which was to say absolutely none at all by Duo's estimation.