Mercado played the lead role of Melanie "Mel" Fernandez-Dela Paz in the GMA series My Faithful Husband, which aired on August 10, 2015. Despite its success, the series was not extended due to scheduling conflicts with Mercado, who at the time was acting in two films, The Prenup and WalangForever. The series earned the lead actors multiple acting awards and nominations. After the commercial success of WalangForever, Mercado earned her second consecutive MMFF Best Actress award in 2015.
