The forgotten

Haley is a tri-bird she was taken from her real family when she was young she is played off as Bella's twin. Haley has been mistreated her hole life anything good she did her parents said bella did. Haleys family didnt want her and everyone treated her bad till one day when she breaks and finds her mate but her sister clams to be his mate so she lets it happen if he can't tell she isn't then that's on him. Haley is over the un fair world and leaves for days till her best friend clair comes to say hi.
Does Clair changes everything for the better or worse?
Clair and haley start off new but what happens when haley mate finds out and wants her but she is already gone?
What does clair help haley do?
Does the alpha find out?
What happens to her mate?
Where does haley leave to?
What happens when Haley's real family finds her?