 Writing for Indiewire, Greg Ehbar cited "I Won't Say (I'm in Love)" as his favorite track, describing it as one of the film's "truly great tunes".Irving Tan of Sputnikmusic was particularly complementary towards the song, which he hailed as "the ultimate pantheon of Grecian achievement".Tan continued, "the five Muses prov[e] that their pillow talk skills are right up there with the best of them", concluding, "The track also works well as an alternative to modern pop's teenage heartbreak music", advising listeners to "ditch Hilary Duff and play this instead".