The aftermath of the bullying scene where Adèle was humiliated by the people whom she considered as friends. It is painful to see her crying and unable to concentrate in class that one can't help but feel sorry for her and wish that none of this should have happened.
The second chapter. All of it.
Adèle's breakdown after Emma dumps her. Yes, she made a mistake, a huge one, but you still want to give her a hug and tell her everything will be okay.
"I have infinite tenderness for you. I always will. All my life long."