The problem with accepting it's the jocks is then accepting that they trashed the complete shit out of everyone's room, the entire mansion, but Nick's room is pristine. Like they just forgot to trash it? Why include such an inane, pointless event of Nick's room being untouched if it's meaningless?
Nick didn't just come out and say his room had little damage, the mc came into his room and saw it was perfect and commented, Nick had to say something.
Also, this discussion with Nick occurs during the second free roam at the mansion, but even during the first free roam Nick's room was perfect.
The story with Nick is almost non-existent. He's basically just been a foil and a conduit for Vinny all along.
In episode 2, when you're first introduced to Nick (and the mc jokes "Nick the DIK"), he's talking to Jacob and the mc comes in on the last sentence:
Nick: "Yeah, I saw him last week. He's doing fine...sort of..."
In hindsight (now that we know about his association with Vinny and that Vinny left the DIKs), this is assuredly Vinny that he's talking about. So literally the first words we hear from Nick are about Vinny.
The next time Vinny speaks is in episode 3, at the Pink Rose, Nick is blubbering about missing Vinny and everything he talks about is introducing us to Vinny.
The following conversation with Nick is in episode 4, when the mc is questioning people about the Cathy Cluck and finds Nick looking shifty as fuck in the library, apart from deflecting his purpose for being in the library, all Nick can talk about is Vinny again.
In episode 5, there's the whole prologue with Vinny and Nick and Nick is virtually invisible there.
Then later in episode 5, for the first time ever Nick talks about something other than Vinny. But this is the end of Hell Week and the DIKs are all enjoying the crazy antics that Derek and the mc got up to and later he makes a comment after the fight with Caleb and finally there the "fix the mansion" scene where he passes comment after the mc comes up with a plan.
Episode 6, the first DIK mansion free roam, who's Nick talking about? Vinny of course. Gives us further insight into why he may have left the DIKs.
Then in the second DIK mansion free roam there's the whole "clean room" discussion. He doesn't mention Vinny at all, but I'm thinking Vinny is very related to the whole thing.
In episode 6 he also mentions feeling nervous when they are awaiting the verdict from Rusty's meeting with Cathy after the Cathy Cluck. Then when they are celebrating the mc's birthday, Nick pipes in to state that Vinny fucked Arieth before Tommy, and then he shiftily claims he also fucked Arieth but he's clueless about the crabs (he didn't fuck her...).
Then in episode 7, for the entire episode he doesn't mention Vinny once, but he messages the mc about helping out more, like he's never messaged the mc about anything prior, but he's guilty about the mansion.
So basically 90% of his conversations are about Vinny. His entire existence is to introduce us to Vinny and to keep Vinny one foot into the DIKs, even if he's not present.
My gut feeling is that Vinny wants something from the mansion, something he may have left here (drugs, money, something else altogether) and when the mc finds Nick in the library, it has nothing to do with the Cathy Cluck, he's just looking for whatever it is Vinny is after.
Then later Vinny (perhaps with the help of others) trashes the mansion looking for whatever it is he's lost, he obviously doesn't trash Nick's room for two reasons: Nick's his friend and what he's looking for wouldn't be with Nick. Then to cover his tracks, he just frames the Alphas.
If it was the Alphas, then they were just repeating the endless cycle of trashing each other's houses and just somehow randomly forgot to trash Nick's room. All when they were under close watch from the college authorities and Chad has told them to back off. I don't buy it.