The Girl Who Confessed to Me

A confession goes sideways the moment the protagonist realizes the girl he likes isn't a girl at all, and he's too soft to say no on the spot. Straight, cornered, and unwilling to break anyone's heart, he agrees to date "her" anyway, quietly plotting an exit strategy with his best friend's help.

The plan is to act unlikable enough that his new boyfriend calls things off first, sparing everyone the awkward conversation. Whether that plan survives actual time spent together, actual conversations, actual feelings creeping in where they weren't invited, is the whole point of sticking around.

You steer that outcome yourself, reading through the school-set story at your own pace, with a chapter-select option letting you jump back to earlier points once you've started. Nothing flashy underneath it, just a slow rework of someone's certainty about what he wants.