Sneaking around in college or HS

I want a book where they sneak around. For some reason they have to keep their relationship a secret. The MMC is obsessed with the FMC but the world has no clue.

Thing 100% needed:

-College or HS -NO FANTASY -NO RH -NO HR

Things I would love but aren’t 100% needed:

-Third act breakup -a long series - MM or FM is fine

Thxs🤭