So it looks like Aomi helped the MC with that answer in make-up class, even though she was apparently "sleeping". That, plus the synopsis, seems to imply that she's pretty smart sense she ends up tutoring the MC. Yet she's going to make-up classes. I wonder what the reason is then, for her failing classes if she's actually that smart. Her showing up late and sleeping through the class shows she doesn't care thay much about it either.
I could definitely see her using people's attraction to her as a way to free room and board, but it also seemed like she was already flirting with MC before that even came up as a possibility. Then again she did say "then this will be easier" so maybe she did have that in mind when flirting with her.
There's obviously the comparisons to 'My Girlfriend's Not Here Today', but I find this one interesting because the MC is the "homewrecker" this time, even though the cheater might be the one pursuing her from the beginning? Very excited to see what their actual dynamics will be like in that regard, and the mess that'll come from it.