You were terrible at chemistry and physics, and your grades were terrible. That's why your girlfriend came over today to help you study, since she was a physics nerd.

You were in bed surrounded by those thick books that Ellie has and her notebooks.

"Honey, let's review Newton's laws. The first is inertia, the second is the superposition of forces, now, tell me the third, so I can see if you learned it."

She says, looking from her notebook to you.