The Grey Circle manifests this way when two people cross paths like opposing ocean currents, unyielding and irreconcilable, so different and so alike, overlapping. Like water, they push and spin and together they create a circle, like a whirlpool, and this ring binds them together like no other could. They cannot be untangled as long as the Circle continues, and the Circle dines well on their tangling and on its own continuation. 

One might call this nature. One might call it fate. One might call it a leash, a cage, or certain doom. 

It does not care what it is called. This is how the Circle moves.