Cloud was the straight foil to a world of comedy nonsense, occasionally throwing his hands up and saying "oh go on then" when it requires him to cross-dress or ride a dolphin or whatever. He's not sad, he's just a man who believes in a little less conversation a little more action.

Here is my world class fanfic/remake script:

Barret: "We've got to bomb Reactor no. 7. It'll kill lots of people but it's a necessary evil. The planet's dyin', Cloud!!! Look, there's this mystical energy field called The Lifes-"
Cloud: "I'm gonna stop you right there. I give absolutely zero smurfs about any of that. Let's just destroy the reactor or hospital or whatever it was you just said."