I read the book. I'll try to tell the full story without adding my own opinion.
So, actually when Sam first imprinted on Emily, Emily did reject him. Of course she didn't want her cousin's boyfriend?? She did everything she can to make him go back to Leah.
Iirc, until the point where Emily slurring hurtful words towards Sam. Sam tried to warn Emi...... reply
did being dumb
