McCarthy revealed that, at the time of filming, Molly Ringwald had a slight romantic interest in him, which was not reciprocated. This situation, combined with his own insecurity, created a tension that, unintentionally, enhanced the on-screen dynamic. This friction, with Ringwald feeling a little rebuffed and McCarthy acting cautiously, fueled the on-screen tension in an accidental, but perfect way for the film.
McCarthy also highlighted the influence of Montgomery Clift on his performance, opting to reduce his dialogue and rely on his facial expressions to convey emotions. This led to the elimination of lines in the scene at the record store, creating a more intimate and powerful moment.