Haley: Where's Lucas tonight?
Nathan: Lucas has a heart condition, Hales.
Haley: Um, don't be mad at me, but I already knew about his HCM. He made me promise not to tell anyone. Is he taking his medication?
Haley: Great, so he lied to me.
Nathan: I think he lied to everyone, including himself.
Haley: Is he gonna be okay?
Nathan: Yeah. We're all gonna make sure he's okay. I promise.