Flirting with Forty (2008) on Netflix

In Denver, the decorator Jackie Laurens has divorced from her husband Daniel Laurens, who had cheated on her and now is living with the younger Melinda. Jackie has a son, Will, and a daughter, Jessica, and she is stressed especially with a demanding client. Jackie will be forty on December, 30th, and her friend Kristine gives a short vacation at the Royal Hawaiian Hotel to her to celebrate her birthday. However, Kristine's mother has a health problem and Jackie travels alone to Honolulu. Jackie meets the handsome twenty-seven year-old surf instructor Kyle Hamilton and they have one night stand. However, they fall in love with each other and Jackie travels to Hawaii to meet Kyle whenever she can. She discloses her love affair to her close friends that do not approve her relationship with a man thirteen years younger than she. When Jessica has an accident, Jackie travels back to Denver in the first available flight and Daniel disapproves her behavior. Jackie decides to break off with Kyle, but on the Christmas Eve, Jackie has a big surprise.