Wilbur immediately and unconvincingly affects nonchalance. "Uh-- I just arrived, you know, I just arrived, I wouldn't-- Quackity, you think I'd wait for you?" He laughs a little.

"I didn’t even notice you guys were here. I’ve been busy with much more important things, so. But hey! I mean, it’s great to see you guys! It’s really, really good to see you. Wilbur, and Ranboo, and--other Quackity, all together." (Quackity's also pretty clearly lying.)

Wow, that is so totally plausible on both their counts and he totally believes both of them. 

"I've been going by Q to differentiate. Hope whatever you were so busy with went well." 

"It did, thank you, thank you." He turns towards the horse, now that Ranboo's dismounted it. "What's this?"

"Ranboo was just looking after your horse after I took it for a bit of a joyride." He gets back on the horse before Quackity can react. "Sorry, just taking it for a bit of a joyride. It's a good horse, look how high it jumps! You got a good horse here, bro."

"Who told you that's my horse?"

"Well. It was tied up in your nation."

Quackity laughs. "That's not my horse. You just got someone's random horse. I think you should probably put it back, I have no idea whose it is. This is really awkward, Wilbur, you should probably--"

Wilbur is absolutely 0% able to hide his frustration as he dismounts. "Look, I wanted to ask you a question."

"Yeah! Yeah, what's up?"

"So, I, I don’t know if you’ve seen this. Uh--well, you can't actually see it, that's kind of a problem--behind this thing, this sand dune, here, there's a--we built a burger van, Quackity!"

"Really? A what, wait, a burger van? You built a burger van."

"Competition. I mean, yeah."

"Is that what you’ve been up to, Wilbur? You know, all this time you’ve been settled next to me and this-- this is your big creation? A burger van?" He laughs.

"Hey man, y'know every-- Rome wasn't built in a day! Small steps and that. I just wanted you to have a look."

"Yeah, let me take a look, let me take a look!"

"Hold on, lemme cook you up something real quick." He starts walking faster towards the van.

This is, admittedly, really funny. If he weren't constantly wondering when the other shoe was going to drop probably he would even be laughing. It is not literally the least subtle thing he's ever seen but if Q was ever this bad at lying it was before he turned twelve. 

"Now, I don't know if I would trust anything coming from you, Wilbur, but I'll-- I'll give it a shot, I'll give it a shot!"

Wilbur puts on a mocking high-pitched sing-song-y voice while he throws together a burger from the chest inside the van. "That was a good joke, Quackity, you're so funny and you're very nice to me and you never bring up my past--" He walks to the counter, hands the burger over, and goes back to his normal voice. "Here you go, Quackity, one Wilburger Volume 1. Take a bite."

"I'm actually not that hungry right now. But hey, I’ll keep it in my inventory and I’ll try it sometime!"

"Okay! But I did want to ask, Quackity, um, I noticed you have a--um--" (He's gotten slightly distracted by the trapdoors again. Back on topic.) "--you have a little restaurant in your town I saw. Uh, I saw it from a distance! From a distance, obviously!"

"Yeah! Yeah, yeah, you guys wanna come and take a look, actually? I didn’t wanna mention it, I feel like it would have been awkward given that you have your own restaurant and I have my own restaurant, I feel like that would make it a little awkward, but, you know, you brought me to your restaurant, I wanna bring you to mine. Can I do that? Give you a little tour?"

"Yeah, man! I just wanted to-- I just wanted to say, you know, I’m sorry if you noticed a little bit, you know, a little bit of, ah, superficial damage-- I left you a little gift as well, uh, afterwards, I’m sure that’s okay. That was all three of us--Ranboo, Q, and me--did that, actually."

"Yeah, I saw it in the, the signs! You guys signed the signs. And then the next day you sent Q to, uh, clean up, I--I appreciated that!"