Hua Jai Chocolate(2005)

Original title: หัวใจช็อกโกแลต

Chun, a wealthy young man unfamiliar with love, discovers its true meaning with Wan while studying hotel management in Switzerland. Despite this newfound love, Chun's greedy girlfriend follows him to Switzerland, causing a rift between him and Wan. Upon returning to Thailand, Wan discovers she's pregnant. While Chun suspects he's the father, Wan denies it. Will they reconcile and find their way back to each other?