It's Kelly not Jessica
Yorkie is shy because she paralyzed. She doesn't lie once about Greg, being paralyzed, or going permanent.
She loved her husband felt like Yorkie as trivializing and vilifying the man she loved.
It's supposed to be misleading.
Yorkie: Socially awkward, shy yet brave. Kelly: Extroverted, brash yet tender. We learn that from all their actions and dialogue.
But if you rewatch you'll notice multiple little clues in what type of environment they're into and what is actually going on.
That's just good storytelling.