A 3 month rule in situationships is basically when the person you're interested in goes along with you and does everything couples do just for them to get tired after 3 months so they leave you for someone more intriguing and fun. Which is why this is -> A short story about 2 high schoolers in their teen life. intertwined in the so believed 3 month rule of a situationship. Mantino and Marina (no they're not siblings 💀)