Belonging to the Alpha

A city girl moves to a small town with her family and have to set up a new life again because her dad's job as the most successful pack doctor when an alpha gets in contact with them requested their assistance and it's a well paid job with her dad being the best in the whole of America. What happens when she finds her mate and he rejects her and she leaves, what happens when a broken hearted 16 year old decides it's time to grow up and glow up and changes her appearance and the big bad alpha can't deal with his mate who's now happy with someone else and he doesn't like it what happens when the she loves is an alpha of a friendly pack and now he belongs to him,