Musa and Riven first meet at the titular Black Mud Swamp in the episode with the same name , as the Specialists needed to track down and recapture the Hunting Troll that had escaped, while the Winx were in the middle of one of Professor Palladium 's exercises. Musa immediately falls for Riven upon seeing him be so standoffish with the rest of the group. She later confesses to this to an image of her mother on the Day of the Rose , however, every attempt at growing closer to Riven is only met with mild annoyance. This is especially the case in " Friends in Need ," where he acts bored with the Winx's party, and only begins to have fun when a monster attacks. In one moment, he seemed to express interest in Musa when she dances in front of him, but nothing ever comes out of it.
Musa and Riven are a couple featured in Winx Club. As one of, if not, the most tumultuous relationship formed within the main cast, the pair naturally dealt with more than their fair share of issues, resulting in them having experienced the most breakups. The couple separated in sixth season episode " The Anthem " , but they start dating again in season eight episode " The Secret of Harmony ". Due to their own emotional hang ups, Musa and Riven have had difficulty understanding one another. Having first met in the Black Mud Swamp in the episode of the same name , Musa quickly developed a crush on him, initially drawn to the air of mystery she believed he held behind his tough exterior.