What is the name of the videoclip in which there is a band in a forest the singer is a blond guy who's singing over a fainted girl finally the girl wakes up but she is in a room?

The videoclip you're describing is likely "The Night We Met" by Lord Huron. In this video, the band performs in a forest setting, and the narrative includes a scene where a blonde singer interacts with a fainted girl. As the story unfolds, she eventually wakes up in a different environment, adding to the song's themes of longing and nostalgia.