Wrong Person
Okay, so the best-case scenario here is that the person who texted “Prom?” followed by “Sorry wrong person” is an idiot, in which case, you’ve dodged a bullet because you’re not going to prom with a moron. The worst-case scenario is that this was a harsh prank, in which case, you’ve still dodged a bullet, because who wants to go to prom with a jerk?