I saw the author trying to justify the insane spending from MC in act 3 (it was one of the issues rised before), when he was worried about some clothes shopping just in act 1 and we know he was overspending on the house (yeah some bonuses + one month of exec salary is not the answer).
But this one we can at least say he tried to explain and we can close an eye.
Yes, this could just be the author saying "we need the MC to have money so I pretended he had a big bank account"
But's here's even weirder idea
Red Bench Theory
A pet theory I am working on (but not i'm committed to) is that the MC has an alternate dissociative identities and it is finally starting to merge with them. One of those identities may or may not be the monster.
Like I've said before I think this story is like Game of Thrones where one or two sentences are more important than buckets of word vomit.
In the kitchen scene where Gristle reveals the rules he followed for Lacey. That's is a very, very important scene that gives us lots of info. But also notice that it's a deflection from the question of what he did when he wasn't studying or attending class. Sure he was "waiting" but it's possible to do things to pass the time while waiting.
This - I admit - is a stretch because the author is not a visual artist and not complete control of AI images. But hear me out and keep an open mind. Lacey didn't notice the red leather pants outfit that Girstle wore in Las Vegas. Why?
Now compare that outfit to Brad Pitt's red pants and red leather jacket in Fight Club. Just get on google image and search "brad pitt fight club". Notice how image mimics the iconic stance of fight club's "Tyler Durden" ) and copies his signature colors? Red, red, red - Tyler always wears red.
(Tyler is the DID alternate of Fight Club's "nice guy" MC)
Red bench and Green bench might mean actual benches or they might be DID alternates.
L "And Anna says you two only hung out a couple times a week."
L "What did you do the rest of the time?"
MC "Uh, well... I studied."
MC "And I learned to cook."
MC "Sometimes I'd play a video game."
L "Yeah, we already talked about those."
MC "Uh, yeah, I guess we did."
L "Why didn't you?"
L "Use those magic powers you have, to make lots of friends like you do now?"
MC "Well... it's easier now."
L "Why is it easier now?"
MC "Well, because I have you."
L "What do I have to do with it?"
MC "Um, it's easy to make friends because you don't need the rules anymore."
MC "Because you're here now."
L "Rules?"
L "What do you mean?"
MC "There are rules."
MC "I have to follow the rules."
L "What rules do you mean?"
MC "Um..."
MC "Did you like the dinner?"
L "No, I want to know about the rules."
L "Tell me about the rules."
MC "..."
MC "Mondays, Tuesdays and Thursdays are for the green bench."
MC "Wednesdays and Fridays are for the red bench."
Notice how this manipulates Lacey in two ways:
1) she drops the questions about how we was spending his time. Because who could follow that line of questioning after hearing that your husband has more than 200 rules about how to protect you?!
2) the harem route comes into being. The MC has pushed Lacey in a direction where she develops a plan to make the Gristle into a king with a harem AND a trad wife. She has to provide her husband with all the fun he missed out on in college!
It also explains how this needy, whiny, angry, sexist, abusive fuckface has "magic powers" to convince women to love him and why some of these improbable events like some rando approaching Lacey with a diagnosis happen.
Perhaps red bench day was no longer a childhood reference but a day that his DID alternate did things. Like make sure that Lacey had access to K. Like learned how to manipulate events to manipulate people.
And then, out of college, he did things like make sure that Gristle got a promotion that should have gone to someone else.
And then, out of college, he did things like make investments to give Gristle a good sized savings account.
Now, again, I'm not ride or die on this and I put my odds of being correct at about 40 percent
( before you shake your head open your mind a second time please! )
Consider that the prof's other game - Augusta's - has a division between good-guy "protect vulnerable girls and women" magic
rules and demonic, rapist, mind-break the women magic
laws. The laws were written by red demon with a big dick. Also note that these powers also come with almost limitless amounts of money.
That pretty much mirrors the red bench / green bench division of my theory.
Perhaps green bench MC was working to protect Lacey. Perhaps red bench MC was working to break Lacey's mind. Green - the color of jealousy "the green eyed monster". Red the color of anger "red with rage"