Ruk Lae Patubai (1999)

Rapoom and Jennisa were classmates when they were children. They went their separate ways, only to meet again by chance as adults. Jennisa asks Rapoom to pretend to be her fake boyfriend to avoid her mother's attempts to arrange a marriage. With the help and advice of Kongthap and her friends, Jennisa creates a fabricated story and evidence of their fake romance to convince her mother and family. During their time together, neither of them realizes the deep feelings in their hearts that they are secretly in love with each other.