How this actually works
A stack of inputs go in: how attractive they are, how funny they are, how long you've been talking, how fast they text back, who's doing the chasing, a chaos rating, and whether they carry more green flags than red. Each one feeds two numbers instead of one: a Payout, how valuable this is worth, and a Difficulty, how hard it'll be to close. You only see them once you hit reveal.
The weighting isn't arbitrary, even if the whole premise is. Attractiveness, humor, and butterflies carry the most weight on Payout because they're the closest thing to a gut-feeling proxy. Response time and how long you've been talking matter less, but they still nudge Difficulty, because a three-month conversation with instant replies genuinely reads differently than a just-matched ghost.
The good girl / bad girl (or good boy / bad boy) dial isn't a simple more-is-better slider. The score peaks in the middle, because a little bit of chaos is usually more fun than either extreme. Max it out toward "choir member" and you lose points for being boring. Max it out toward "actual menace" and you lose points for being a genuine liability.
Should you actually trust the result?
No. This is a joke calculator on a website called Useless Calculators. It exists because indecision is funnier with a score attached to it, not because nine sliders can capture whether you should text someone back. Use it to kill two minutes, screenshot the verdict for the group chat, and then make the actual decision the normal way.