This confrontation between Darlie and the detectives did occur, but it was the only confrontation. A viewer really needs to see the entire interview and understand the interrogators arrogance about their abilities as 'hardened, New York homicide detectives.' (Only they pronounced it NOO YAWK) After Darlie left, the lead detective - Jerry - said to the camera "We grilled Darlie and we grilled her and she never changed her story." They did not ask her about any of the evidence, such as the blood spots on her gown, the knife print on the carpet, blood in the laundry room, etc.
They just let her get away with the I can't remember and then moved on to interview her family and got the usual 'she's innocent.' From the family, the detectives moved on to interview (imo) the dumbest guy in Rowlett, maybe in the entire state of Texas, too. Dumb guy said Darin was probably the one who set up everything and from this the Noo Yawk detectives determined that Darlie's case really needed to be investigated again. The entire show was laughable.