Arturo De La Riva is a successful architect who has been happily married to Eugenia for ten years, and they have a daughter, Aranza. However they do not imagine that Sonia, Eugenia's cousin, is secretly obsessively in love with Arturo and secretly hates Eugenia for that and tries to get rid of her by secretly switching Eugenia's medications, causing her a coma, to have Arturo for herself.
Meanwhile, Isabel López Cerdán is a successful interior decorator who has been married, for two years, to Fernando Córdova, whom she loves above all else.
Eugenia passes away, coinciding with the time Isabel discovers that Fernando is a swindler who has been stealing her money and also has been married to a young woman named Andrea for ten years and has two sons with her, Esteban and Angel, the latter having been born while Fernando was supposedly married with Isabel, so Isabel has him sent to jail.
After these blows, Isabel and Arturo are united by destiny in a paradise-like beach of Mexico, initiating a relation that will have to overcome different obstacles like Sonia's manipulation of Aranza, so that she does not accept Isabel and also Fernando who escapes from jail to get revenge on both Isabel and Andrea.
Production of Por Siempre mi Amor officially started on August 15, 2013.[4][5]
On October 7, 2013, Canal de las Estrellas started broadcasting Por Siempre mi Amor weekdays at 4:15pm, replacing Corazón indomable.[6][7] The last episode was broadcast on May 4, 2014, with La Gata replacing it the following day.
On December 2, 2013, Univision started broadcasting Por Siempre mi Amor on weeknights at 8pm/7c, replacing one hour of Corazón Indomable. The last episode was broadcast on May 9, 2014, with two hours of De que te quiero, te quiero replacing it on May 12, 2014.[8][9]
