I Can't tell my mate that he's my mate?

Mia Dayton was a normal girl going to a normal high school with a crazy best friend ,Avery ,scratch that she goes to a normal high school at least,
With her crazy bestie Avery but she is far from a normal girl,why you
ask well that's because she is a werewolf yup you heard me right a werewolf and they are real.but anyway what happens when Mia finds her mate but can't tell him because of two things one -it's her best friends brother two-he's kinda human