Not the Worlds Collide Theory!
George: Ah, you have no idea of the magnitude of this thing. If she [Susan] is allowed to infiltrate this world, then George Costanza as you know him, ceases to exist! You see, right now, I have Relationship George, but there is also Independent George. That's the George you know, the George you grew up with -- Movie George, Coffee Shop George, Liar George, Bawdy George!
Jerry: I love that George.
George: Me too! And he's dying, Jerry! If Relationship George walks through this door, he will kill Independent George! A George, divided against itself, cannot stand!*