The scene in question:
In this scene, Bradley Cooper's baby is crying in the hospital. First he politely asks a nurse to tend to her, and the nurse ignores him and the baby. The nurse continues to ignore his repeated requests and he gets increasingly frustrated and the sound and the crying swells.
Maybe the nurse is justified, maybe not. Maybe Bradley is overreacting, maybe not, but I don't understand why this scene was included; does anyone know its significance?
I looked up the script to see if it had any insight. He doesn't seem to get as agitated in the script, in part maybe because the script says the nurses don't hear him, whereas in the movie they appear to be ignoring him.