This magical disease affects those who harbor feelings of unrequited love for another.

Stats: Inhaled, Fortitude DC 30, incubation period 1d2 days, Damage 1d4 Wisdom. When damaged, the victim must make another saving throw, or one point of that damage is permanent drain instead.

Additionally, the victim is treated as if under a permanent Charm Person spell towards the object of their affection, except their attitude is treated as Fanatic, and they are always treated as Hostile towards other creatures the desired creature seems attracted to, even if they would normally be subject to an effect that would change their attitude.

Just a quick little thing I whipped up for Snowbluff.