[Zack watches Cloud flinch and look like he's been physically hit. He takes a step forward, worried, and places a hand on his friend's shoulder.]

Hey, is it the Mako poisoning? Don't push yourself so much. We still don't know what that does.

[When he says he doesn't know who he is, Zack frowns. Definitely the poisoning. Doesn't stop it from hurting though. Cloud and Kunsel were his only friends the last few years in SOLDIER.]

My name's Zack, Zack Fair. But I think you should probably sit down.