The country ballad discusses Andress' decision of bringing her boyfriend home and declares that if they break up, her family will suffer most.

"More Hearts Than Mine" received widespread acclaim from music critics, who praised its lyrics and Andress' decision to write a song about the situation she was in.

The track attained double platinum certifications from the Recording Industry Association of America (RIAA) and Music Canada (MC).

To further promote the song, Andress performed it on various occasions, including at Grand Ole Opry in 2019 and on Jimmy Kimmel Live!

Talking to Annie Reuter of Billboard in April 2019, Andress revealed that she chose to release "Lady Like" (2019) as her first single under Warner Music Nashville over "More Hearts Than Mine" as she considered that the former represented her the best.

[4] Another version of the track, with Karen Fairchild and Kimberly Schlapman of Little Big Town was later included on the deluxe edition of Lady Like (2020).

[10] In the song's chorus, Andress predicts how people close to her would react to her new relationship; her mother would fall in love with him instantly, her father would bond with him over "guy things" and pretend he doesn't like him, her sister would try to embarrass him by asking him "a million questions" and her high school friends would tell him about her "crazy nights".

[11] Carena Liptak of The Boot described "More Hearts Than Mine" as "a ballad about opening up to heartbreak by inviting a partner to meet your family in your hometown".

[12] Taste of Country's Billy Dukes stated about Andress that "there's something small-town relatable about her fears and observations" which "transcend the song".

[15] Tom Roland of Billboard compared it to Bobbie Gentry's "Ode to Billy Joe" (1967) and declared that it is "setting [Andress] up as a smart musical documentarian".

[25] After hearing Andress singing "Lady Like" at a country showcase in 2018, Karen Fairchild of Little Big Town invited her in July 2019 to perform "More Hearts Than Mine" and two other songs with fellow member Kimberly Schlapman as part of Cracker Barrel's "Five Decades, One Voice" initiative.

[28] In October of the same year, Andress sang the track alongside "Lady Like" at the country music stage concert Grand Ole Opry.