Place it just after the crush is revealed, then follow with the shocked meme sound for the group's reaction and the goofy yell when the teasing peaks, keeping the reveal itself as the centre of the edit.
About this sound
This clip is a short Doraemon sound built around the Detectamoros name, a cartoon gadget cue for spotting a crush. It feels mischievous and light, like catching friends in a secret they were trying to hide, with a bright anime charm that makes the reveal feel warm rather than mean.