Original title (ES): Los amantes astronautas (The Astronaut Lovers)

Pedro travels from Spain to Argentina for a vacation at his uncle’s home, where he meets Maxi again, a childhood friend. Maxi is surprised when he finds out Pedro is gay. When Maxi finds his ex-girlfriend is also there, he asks Pedro to pretend to be his boyfriend to win her back. Pedro accepts the game, unaware of the dangers of playing with love.

https://www.themoviedb.org/movie/1058128-los-amantes-astronautas