that is what i was thinking too. she is like head caregiver and people still respect her because of the fact that she is the baby sister. it kinda strikes fear in those that think they can cross her. charly is like the one person he does not authoritative over and she gets to see the small soft side. in a sense, she could be his weakness but because of her ties with Connor, the other pack knows not to mess with her.
For her, she hates the fact that her brother had to die and that is the one resentment she has towards nick but growing up in the pack, she understands why it had to be done.