I just finished reading the webnovel version of 'I Am the Lycan's Luna' on MyReadNovel, and I can see why it's getting traction. The main character starts off as this meek, scorned human mate to a Lycan Alpha who treats her terribly, his 'true' destined mate being another high-ranking Lycan. The early chapters are a brutal slog of public humiliation and neglect, almost dropped it.
But the pivot happens when she's nearly killed. She doesn't get a sudden power-up; instead, she quietly leaves, which somehow triggers the mate bond's magical backlash on the Alpha. The story then splits between her trying to build a life outside the pack, discovering she has her own latent connection to ancient moon magic (not werewolf magic), and the Alpha's slow, painful realization that he's cursed himself by rejecting her. It's less about revenge and more about him having to deconstruct his own toxic worldview while she moves on, which I found a refreshing twist on the rejected mate trope.