Moondance (1994)

30ish Patrick and teenage Dominic are two brothers living alone in a remote farmhouse in the Southwest of Ireland, while their mother is away traveling. When their aunt comes visiting, with her arrives Anya, a young woman from Germany who starts helping Dominic with his studies in return for a chance to improve her English. As time goes by, Patrick and Anya fall in love, while Dominic also develops feelings for the girl. And when they marry and decide to move to Dublin together, Dominic comes with them, not being able to let go of his brother.