The 2003 screenplay describes Ennis's callousness to Cassie (without a boyfriend) as he ends their fling:
136 INT: DENNY'S RESTAURANT: RIVERTON: NIGHT:
ENNIS sits in a booth, eating a slice of apple pie and drinking coffee. An ELDERLY MAN sits at the counter. A heavy-set WAITRESS carries a tray of food past ENNIS, and serves a middle-aged couple in a booth. Glen Campbell's "SOUTHERN NIGHTS" plays from the speakers mounted in the ceiling. Enter CASSIE. She's dressed in tight jeans, her white blouse untucked on one side. She is slightly disheveled, has been crying, her eyeliner trailing down her face. She sits down in ENNIS'S booth, across from him.
CASSIE
{loud whisper)
Where you been?
The restaurant is dead silent.
CASSIE
(still whispering)
I said, where you been? I ain’t seen you for a week.
Called you up, you said you wasn't goin' out tonight.
ENNIS
(a little defensive)
Denny's ain't goin' out. I got hungry, so I came here
to get some pie. (a beat) Can't I eat in peace?
CASSIE
Been drivin' around for hours, lookin' for your truck.
ENNIS drops his fork. It clanks on the plate. The noise makes ENNIS self-conscious, looks around.
CASSIE
I drove to your trailer and you wasn't there,
ENNIS
Didn't know you was my parole officer.
CASSIE
I ain't your parole officer. I'm your girlfriend,
why can't you treat me like one?
ENNIS looks at CASSIE. CASSIE looks hard at his face: he's dark, distant, inaccessible.
CASSIE
I don't get you, Ennis Del Mar.
Knows he's hurting her, but he doesn't know what to do about it. The look on his face changes then, to a look of stark loneliness. She realizes, then, that she's not the answer.
ENNIS reaches up to her shoulder.
CASSIE deflects ENNIS'S hand. Tears well up in CASSIE'S eyes.
She gets up, begins to sob when she gets to the door.
[Leaves.]
ENNIS stares out the window at her as she gets in her car, speeds off.