It’s probably not even a reference to the song from S5A.
There is a movie with this name:
Only You is a 1994 American romantic comedy film directed by Norman Jewison and starring Marisa Tomei, Robert Downey, Jr., and Bonnie Hunt. Written by Diane Drake and Malia Scotch Marmo (uncredited), the film is about a young woman whose search for the man she believes to be her soulmate leads her to Italy where she meets her destiny.[2] Upon its release the film received mostly mixed reviews, but critics praised Tomei and Downey’s performances.
More about it here
And i doubt the GA will even remenbers of some song title on 505.
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"I offended you with my opinion? Ha, you should hear the ones I keep to myself".