"Nope! They're all pretty much jerks." Demyx said in a good-natured tone. Terra's thoughts would have been amusing to him, if he knew them, but it was definitely the latter. A weapon.

He's puzzled by the change, honestly, he didn't know why Terra was giving him such an expression all of a sudden and it was eerily familiar.

No, there's no real choice there, he's familiar with the words not matching up with the intent. Demyx nods his agreement and begins to move to the aforementioned location, keeping Terra in his peripheral vision. His instincts were telling him that this just got possibly dangerous. He doesn't falter in his body language or smile, but he does keep Terra in his sights.