Because it's always black and white.
When two people takes a long, romantic walk on the beach, but only one of them knows about it
Because they're constant in a pool.
OCD, OCD, OCD. Wait the last time didn't feel right. OCD, OCD, OCD. Wait, the second time didn't feel right. OCD, OCD, OCD. Wait...
Seven. It *has* to be seven.