"Pretending" is an original song from the second season of the American musical comedy-drama Glee, entitled "New York".
[1] Rachel Berry and Finn Hudson perform the duet to an enthusiastic audience at Nationals (a metaphor for their rocky relationship and uncertain future).
They conclude the song by kissing each other, stunning the entire theatre into silence and "likely ruining their chances of a win with such a blatant display of unprofessionalism".
[1] Blogcritics deemed it "a heck of a love duet",[2] while Screencrave said it had "heartfelt lyrics and a performance to match by both.
[6] Jacksonville.com deemed it "forgettable", writing "the duet improves with multiple listens, but still pales to previous Rachel/Finn numbers".