On the one hand: Clearly the polite thing to do is to extricate himself from the conversation, make his apologies, and leave. You don't respond like that unless you want to make it very, very clear that you're still pissed about what happened in Kinoko. 

On the other hand: If he takes the hint and leaves, he's letting Wilbur win the implicit argument about whether or not he gets to decide where Quackity goes and who he talks to; giving up that fight is ceding even more ground on whether or not Quackity gets to keep his own name. He'd even intended to cede that particular fight to other-Quackity, who after all was here first, but that doesn't mean Wilbur gets to rename him whenever he wants.

(You're not a dog, he'd said, and like some kind of fucking idiot Quackity had thought that maybe he meant it--) 

Not the point. He's a professional. Shut the fuck up. "Hah. That sounds like Tommy, yeah." 

Wilbur grins like he’s got an idea. “Good for Tommy, man.”

Deep breath. No rising to the bait. If Wilbur wants to blow up the Eiffel Tower, which he definitely does, he can’t get a reaction out of it, that’ll just teach him to burn down more of Quackity’s stuff. “No killing yourself on Las Nevadas land. Hard rule.”

“Awwwwwwww, big Q.”

This is such a weird way to be about death. If you're fine with casually killing him it can't be that big of a deal if he does it himself, it's not even going to stick. 

(It'll stick a hell of a lot less than what other-Quackity apparently does to Dream on the regular he is not thinking about that right now.) 

"Fair enough, I guess." 

"Glad we're all in agreement."

"We-e-ell."

"I thought you said you'd changed, huh, Wilbur?"

"And I thought you didn't believe me."

Oh shit. Yeah okay the attitude towards death makes a lot more fucking sense now—

"Um— Wilbur—" 

"Yes, Quackity?"

Shit. He wasn't actually expecting Wilbur to notice he'd said anything. "I—"

(he remembers, again, the prison, the way dream wouldn't look away from him, and something about the way wilbur's smiling, and whatever part of him was digging its heels in and refusing to let wilbur win breaks—)

"Nevermind it's fine."

He's kind of visibly shrinking, like he desperately doesn't want you to be looking at him, and equally desperately wants to look like he's being normal and none of this is getting to him.

“Great!”

(The Quackity that lives in Las Nevadas is looking at the visibly shrinking Quackity with something between poorly-hidden disgust and contempt.) “Anything else you want to see in Las Nevadas? Our restaurant is hiring, if you’re interested.”

you might think disgust would be protective because they don't want to touch you but actually it just means they're going to want it to hurt. still there's nothing left to do now but smile and put up with it and try to be okay. it won't kill you. he won't kill you. they're not allowed to kill you, says some part of him that is stupid and does not get a vote. 

He's smiling. He's fine. He's chill. (He's still shrinking back, shoulders curled inward, hands in tight balls in his pockets.) "I'll think about it!" 

“Great, well, you know where to find me.”

He doesn't— he's just letting him go? Can he do that? 

"Sure do," he says, cheerful, normal, and then he walks away, at a normal fucking pace, because he's not running away, because there's nothing to run away from and nobody was threatening anyone and he's fine and he wants to be here, and just in case other-Quackity changes his mind he doesn't look back. 

Wilbur follows! And when they’re far enough from Quackity: “We should blow up the Eiffel Tower later.”

He almost doesn't notice that Wilbur said anything, too focused on not letting it show how bad he's crumbling, not flinching when he realizes someone's gotten that close. 

"—sorry, what?" 

“I said, we should blow up the Eiffel Tower later.”

"I—" don't think i can risk it "think we should not." 

“Awwwww, c’mon, Quackity, what’s life without a little risk? Scared he’ll take away his job offer?”

"I mean, no, not really." He laughs, not very convincingly. "Just-- I don't know." 

“Then what’s the big deal?”

"I just don't like being around explosions, dude, it's not that deep."