If you haven't heard it before then you haven't been reading the thread. Admittedly, there is a lot in this thread, so I can see some things being missed.
The idea that she's undercover is basically fueled by her coming from nowhere(other than the strip club, of course) and just seamlessly inserting herself into almost everything. She tries to get inserted into all the party action, not just at a base level but with the people running the show. Every move she makes seems to be about connecting herself with people in positions of power, which means anything that's going on is more likely to be done by those people, or at least connected enough to it to glean information. If the MC is on even a moderately DIKish run and hooks up with her she'll try and attach to him as well, as he's making waves on campus and becoming something of a leader himself. Consider that everybody under the sun knows MC is packing a big dick, dating multiple people (or having at least spread the seed far and wide), and she still pushes him to be her regular. She wants to roll with the MC, a guy who spends a lot of his time in the company of Tommy, Quinn, and even various faculty members.
Could it all be completely unrelated? Sure, it totally could be. It's also just a little too direct and immediate for what amounts to a freshman who just joined the school trying to get an 'in' with all these different folks. MC sorta fell into it, he didn't make connecting himself to power people his motivation.
Ah, but this is the perfect trope, you see. Just like often happens in life, and in all those movies DPC was fond of, the person you want/wants you always shows up after you've gotten into a committed relationship with somebody else. My life wasn't all about the drama, but it happened on occasion. Didn't get together with one of them until 20 years post-schooling. One of us was always dating somebody else in the meantime, and unlike the MC, we weren't big on the cheating angle.
JFC. I have no idea who the Giga-Chad here really is, but.. damn. I hear women say they want a 6-pack and this fucker brings a 10-pack to the game. He's got to go.