You were so scared of being the Third Wheel that you went home and locked yourself for 30 minutes. You cut yourself, and hid in your blanket for a moment. Until one day, Pin and Coiny started snatching it, and they started licking your bloody scars, and while they're at it, they start apologising, saying that they love you and only you. They want to cope with your new role...

The First Wheel.