They say it's only a matter of time before Los Angeles is hit by an earthquake so powerful it will annihilate the entire city. My father never wanted to live there, he said it felt like swimming under water when the entire surface is frozen and covered with ice. When he talked to me about that constant threat and the silence afterwards I should have known he was talking about himself.
If Los Angeles is the earthquake then Carl must be the aftershock, the sound that breaks the silence and lets you know you're still alive. Chloe moved here to get away from him, for me he's the only reason why I would ever consider going back.