Co-written and first recorded (as “He Will Break Your Heart”) by Jerry Butler (US #7/R&B #1 1960).
Other hit version by Tony Orland & Dawn (US #1/MOR #1/CAN #4/NZ #28 1975).
From the wiki: “The song was written by Jerry Butler (‘Moon River‘), Calvin Carter, and Curtis Mayfield (who sings backup on the Butler recording). First recorded by Butler and released as a single in 1960, it peaked at #7 on the Billboard Hot 100 chart. In addition, Butler’s recording spent seven, non-consecutive weeks at #1 on the U.S. R&B chart.
“More than a decade later, when Tony Orlando (‘Candida‘, ‘Halfway to Paradise‘) and Dawn (Telma Hopkins and Joyce Vincent Wilson) were waiting in the lobby to go on to perform at a Golden Globes award ceremony, Orlando spoke with Faye Dunaway and her then-husband, Peter Wolf, lead singer for The J. Geils Band. To pass the time, the two men began singing various R&B songs from the `60s, including Butler’s ‘He Will Break Your Heart’, which the women recommended that Dawn record on an upcoming album. Orlando contacted Mayfield requesting permission to do a remake, but to change the song’s title to the opening lines, and Mayfield gave his permission.”
Tony Orlando & Dawn, “He Don’t Love You (Like I Love You)” (1975):