Little City

Little City is a 1997 comedyromance film written and directed by Roberto Benabib. It went straight to video in the UK.

Kevin and Nina, who is a chef in a ritzy restaurant, meet in a Catholic Church where he tells her that Adam suspects she is cheating on him. Nina is alarmed and asks Kevin if Adam knows who her lover is. Kevin, it turns out, is the man in which she is cheating on Adam with because she was feeling neglected by Adam. The two express guilt over deceiving Adam, but they also acknowledge they cant stay away from each other. Nina also feels that Adam is not over his exgirlfriend, Kate, who left him for a woman, Anne, and whom came out as a lesbian.Adam, figuring out Kevin is the man sleeping with Nina, confronts him at the bar where Kevin and now also Rebecca work. Kevin tells Adam he wasnt treating Nina right and tells him he knows that Adam is not truly in love with Nina. Even though Adam knows Kevin is right, he is still angry and smashes a shot glass against the bar wall before storming out. ........

Source: Wikipedia