Searching for a book about a rejected mate who becomes a top trainer and gets invited to train at her old pack (also wolfless?)

I was reading this book online a while ago and lost it. I don’t remember the characters names, except that it’s not mala Luca. The fml was rejected by her mate and left the pack, then went on to become a top trainer and fighter. Everyone thinks she doesn’t have a wolf, but I don’t remember whether she actually does or not. Help!