Chloe does get it

Chloe: The universe is deterministic all right, just like Newton said, I mean it's trying to be, but the only thing going wrong is people fancying people who aren't supposed to be part of the plan.

Valentine: Ah. The attraction that Newton left out. All way the way back to the apple in the garden. Yes. Yes, I think you're the first person to think of this.

Arcadia, Act II, scene 7