[3] An electropop and power pop song,[4][5] "Boyfriend" references Cameron's sexuality after she came out as queer in 2021, and explicitly describes a romantic relationship with a woman.

[6] Melody Heald of Glitter Magazine wrote that the song "hints that her love interest needs a girlfriend, thinking she would treat her better than her boyfriend" by "doing things he'd never do".

Cameron said in a press release: "In writing 'Boyfriend,' I feel like I finally found my sound, my perspective, and myself in a way I wasn't sure I ever would.

[7] Isabella Vega of Euphoria Magazine commented that "Boyfriend" will become a big hit due to "its killer lyricism, or even its almost gothic production, but with its deeply embedded message of self-empowerment".

[8] Caitlin White of Uproxx described the song as "dramatic and dark, and hits like a queer James Bond anthem".